Perianal Condyloma Acuminatum-like Plaque

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Perianal Condyloma Acuminatum-like Plaque

The Diagnosis: Metastatic Crohn Disease

Crohn disease (CD), a chronic inflammatory granulomatous disease of the gastrointestinal tract, has a wide spectrum of presentations.1 The condition may affect the vulva, perineum, or perianal skin by direct extension from the gastrointestinal tract or may appear as a separate and distinct cutaneous focus of disease referred to as metastatic Crohn disease (MCD).2

Cutaneous lesions of MCD include ulcers, fissures, sinus tracts, abscesses, and vegetative plaques, which typically extend in continuity with sites of intra-abdominal disease to the perineum, buttocks, or abdominal wall, as well as ostomy sites or incisional scars. Erythema nodosum and pyoderma gangrenosum are the most common nonspecific cutaneous manifestations. Other cutaneous lesions described in CD include polyarteritis nodosa, psoriasis, erythema multiforme, erythema elevatum diutinum, epidermolysis bullosa acquisita, acne fulminans, pyoderma faciale, neutrophilic lobular panniculitis, granulomatous vasculitis, and porokeratosis.3

Perianal skin is the most common site of cutaneous involvement in individuals with CD. It is a marker of more severe disease and is associated with multiple surgical interventions and frequent relapses and has been reported in 22% of patients with CD.4 Most already had an existing diagnosis of gastrointestinal CD, which was active in one-third of individuals; however, 20% presented with disease at nongastrointestinal sites 2 months to 4 years prior to developing the gastrointestinal CD manifestations.5 Our patient presented with lesions on the perianal skin of 2 years' duration and a 6-month history of diarrhea. A colonoscopy demonstrated shallow ulcers involving the ileocecal portion of the gut, colon, and rectum. A biopsy from intestinal mucosal tissue showed acute and chronic inflammation with necrosis mixed with granulomatous inflammation, suggestive of CD.

Microscopically, the dominant histologic features of MCD are similar to those of bowel lesions, including an inflammatory infiltrate commonly consisting of sterile noncaseating sarcoidal granulomas, foreign body and Langhans giant cells, epithelioid histiocytes, and plasma cells surrounded by numerous mononuclear cells within the dermis with occasional extension into the subcutis (quiz image). Less common features include collagen degeneration, an infiltrate rich in eosinophils, dermal edema, and mixed lichenoid and granulomatous dermatitis.6

Metastatic CD often is misdiagnosed. A detailed history and physical examination may help narrow the differential; however, biopsy is necessary to establish a diagnosis of MCD. The histologic differential diagnosis of sarcoidal granulomatous inflammation of genital skin includes sarcoidosis, rheumatoid arthritis, leprosy or other mycobacterial and parasitic infection, granulomatosis with polyangiitis (GPA), and granulomatous infiltrate associated with certain exogenous material (eg, silica, zirconium, beryllium, tattoo pigment).

Sarcoidosis is a multiorgan disease that most frequently affects the lungs, skin, and lymph nodes. Its etiopathogenesis has not been clearly elucidated.7 Cutaneous lesions are present in 20% to 35% of patients.8 Given the wide variability of clinical manifestations, cutaneous sarcoidosis is another one of the great imitators. Cutaneous lesions are classified as specific and nonspecific depending on the presence of noncaseating granulomas on histologic studies and include maculopapules, plaques, nodules, lupus pernio, scar infiltration, alopecia, ulcerative lesions, and hypopigmentation. The most common nonspecific lesion of cutaneous sarcoidosis is erythema nodosum. Other manifestations include calcifications, prurigo, erythema multiforme, nail clubbing, and Sweet syndrome.9

Histologic findings in sarcoidosis generally are independent of the respective organ and clinical disease presentation. The epidermis usually remains unchanged, whereas the dermis shows a superficial and deep nodular granulomatous infiltrate. Granulomas consist of epithelioid cells with only few giant cells and no surrounding lymphocytes or a very sparse lymphocytic infiltrate ("naked" granuloma)(Figure 1). Foreign bodies, including silica, are known to be able to induce sarcoid granulomas, especially in patients with sarcoidosis. A sarcoidal reaction in long-standing scar tissue points to a diagnosis of sarcoidosis.10

Figure 1. Cutaneous sarcoidosis. Granulomas with a sparse lymphocytic infiltrate (“naked” granuloma)(H&E, original magnification ×100).

Cutaneous tuberculosis primarily is caused by Mycobacterium tuberculosis and less frequently Mycobacterium bovis.11,12 The manifestations of cutaneous tuberculosis depends on various factors such as the type of infection, mode of dissemination, host immunity, and whether it is a first-time infection or a recurrence. In Europe, the head and neck regions are most frequently affected.13 Lesions present as red-brown papules coalescing into a plaque. The tissue, especially in central parts of the lesion, is fragile (probe phenomenon). Diascopy shows the typical apple jelly-like color.

Histologically, cutaneous tuberculosis is characterized by typical tuberculoid granulomas with epithelioid cells and Langhans giant cells at the center surrounded by lymphocytes (Figure 2). Caseous necrosis as well as fibrosis may occur,14,15 and the granulomas tend to coalesce.

Figure 2. Cutaneous tuberculosis. Tuberculoid granuloma with epithelioid cells surrounded by many lymphocytes with central caseous necrosis (H&E, original magnification ×100).

Granulomatosis with polyangiitis, formerly known as Wegener granulomatosis, is a complex, multisystemic disease with varying manifestations. The condition has been defined as a necrotizing granulomatous inflammation usually involving the upper and lower respiratory tracts and necrotizing vasculitis affecting predominantly small- to medium-sized vessels.16 The etiology of GPA is thought to be linked to environmental and infectious triggers inciting onset of disease in genetically predisposed individuals. Antineutrophil cytoplasmic antibodies play an important role in the pathogenesis of this disease. Cutaneous vasculitis secondary to GPA can present as papules, nodules, palpable purpura, ulcers resembling pyoderma gangrenosum, or necrotizing lesions leading to gangrene.17

The predominant histopathologic pattern in cutaneous lesions of GPA is leukocytoclastic vasculitis, which is present in up to 50% of biopsies.18 Characteristic findings that aid in establishing the diagnosis include histologic evidence of focal necrosis, fibrinoid degeneration, palisading granuloma surrounding neutrophils (Figure 3), and granulomatous vasculitis involving muscular vessel walls.19 Nonpalisading foci of necrosis or fibrinoid degeneration may precede the development of the typical palisading granuloma.20

Figure 3. Granulomatosis with polyangiitis. Palisaded granulomas with a central stellate collection of neutrophils. Multinucleate giant cells are present in the granulomas (H&E, original magnification ×100).

The typical histopathologic pattern of cutaneous amebiasis is ulceration with vascular necrosis (Figure 4).21 The organisms have prominent round nuclei and nucleoli and the cytoplasm may have a scalloped border.

Figure 4. Cutaneous amebiasis. Vascular necrosis with visible trophozoites (arrow)(H&E, original magnification ×400).

References
  1. Crohn BB, Ginzburg L, Oppenheimer GD. Landmark article Oct 25, 1932. regional ileitis. a pathologic and clinical entity. by Burril B. Crohn, Leon Gonzburg and Gordon D. Oppenheimer. JAMA. 1984;251:73-79.
  2. Parks AG, Morson BC, Pegum JS. Crohn's disease with cutaneous involvement. Proc R Soc Med. 1965;58:241-242.
  3. Weedon D. Miscellaneous conditions. Skin Pathology. 2nd ed. London, England: Churchill Livingstone; 2002:554.
  4. Samitz MH, Dana Jr AS, Rosenberg P. Cutaneous vasculitis in association with Crohn's disease. Cutis. 1970;6:51-56.
  5. Palamaras I, El-Jabbour J, Pietropaolo N, et al. Metastatic Crohn's disease: a review. J Eur Acad Dermatol Venereol. 2008;22:1033-1043.
  6. Aberumand B, Howard J, Howard J. Metastatic Crohn's disease: an approach to an uncommon but important cutaneous disorder: a review [published online January 3, 2017]. BioMed Res Int. 2017;2017:8192150.
  7. Mahony J, Helms SE, Brodell RT. The sarcoidal granuloma: a unifying hypothesis for an enigmatic response. Clin Dermatol. 2014;32:654-659.
  8. Freedberg IM, Eisen AZ, Wolf K, et al. Fitzpatrick's Dermatology in General Medicine. 6th ed. New York, NY: McGraw Hill; 2003.
  9. Fernandez-Faith E, McDonnell J. Cutaneous sarcoidosis: differential diagnosis. Clin Dermatol. 2007;25:276-287.
  10. Walsh NM, Hanly JG, Tremaine R, et al. Cutaneous sarcoidosis and foreign bodies. Am J Dermatopathol. 1993;15:203-207.
  11. Semaan R, Traboulsi R, Kanj S. Primary Mycobacterium tuberculosis complex cutaneous infection: report of two cases and literature review. Int J Infect Dis. 2008;12:472-477.
  12. Lai-Cheong JE, Perez A, Tang V, et al. Cutaneous manifestations of tuberculosis. Clin Exp Dermatol. 2007;32:461-466.
  13. Marcoval J, Servitje O, Moreno A, et al. Lupus vulgaris. clinical, histopathologic, and bacteriologic study of 10 cases. J Am Acad Dermatol. 1992;26:404-407.
  14. Tronnier M, Wolff H. Dermatosen mit granulomatöser Entzündung. Histopathologie der Haut. In: Kerl H, Garbe C, Cerroni L, et al, eds. New York, NY: Springer; 2003.
  15. Min KW, Ko JY, Park CK. Histopathological spectrum of cutaneous tuberculosis and non-tuberculous mycobacterial infections. J Cutan Pathol. 2012;39:582-595.
  16. Jennette JC, Falk RJ, Bacon PA, et al. 2012 Revised International Chapel Hill Consensus Conference nomenclature of vasculitides. Arthritis Rheum. 2013;65:1-11.
  17. Comfere NI, Macaron NC, Gibson LE. Cutaneous manifestations of Wegener's granulomatosis: a clinicopathologic study of 17 patients and correlation to antineutrophil cytoplasmic antibody status. J Cutan Pathol. 2007;34:739-747.
  18. Marzano AV, Vezzoli P, Berti E. Skin involvement in cutaneous and systemic vasculitis. Autoimmun Rev. 2012;12:467-476.
  19. Bramsiepe I, Danz B, Heine R, et al. Primary cutaneous manifestation of Wegener's granulomatosis [in German]. Dtsch Med Wochenschr. 2008;27:1429-1432.
  20. Daoud MS, Gibson LE, DeRemee RA, et al. Cutaneous Wegener's granulomatosis: clinical, histopathologic, and immunopathologic features of thirty patients. J Am Acad Dermatol. 1994;31:605-612.
  21. Guidry JA, Downing C, Tyring SK. Deep fungal infections, blastomycosis-like pyoderma, and granulomatous sexually transmitted infections. Dermatol Clin. 2015;33:595-607.
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From the Department of Dermatology and Dermatologic Surgery, Medical University of South Carolina, Charleston. Dr. Luo also is from the Department of Dermatology, Wuhan General Hospital of Guangzhou Command, Hubei, China.

The authors report no conflict of interest.

Correspondence: Dirk M. Elston, MD, Department of Dermatology and Dermatologic Surgery, Medical University of South Carolina, 135 Rutledge Ave, MSC 578, Charleston, SC 29425 (elstond@musc.edu).

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From the Department of Dermatology and Dermatologic Surgery, Medical University of South Carolina, Charleston. Dr. Luo also is from the Department of Dermatology, Wuhan General Hospital of Guangzhou Command, Hubei, China.

The authors report no conflict of interest.

Correspondence: Dirk M. Elston, MD, Department of Dermatology and Dermatologic Surgery, Medical University of South Carolina, 135 Rutledge Ave, MSC 578, Charleston, SC 29425 (elstond@musc.edu).

Author and Disclosure Information

From the Department of Dermatology and Dermatologic Surgery, Medical University of South Carolina, Charleston. Dr. Luo also is from the Department of Dermatology, Wuhan General Hospital of Guangzhou Command, Hubei, China.

The authors report no conflict of interest.

Correspondence: Dirk M. Elston, MD, Department of Dermatology and Dermatologic Surgery, Medical University of South Carolina, 135 Rutledge Ave, MSC 578, Charleston, SC 29425 (elstond@musc.edu).

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Related Articles

The Diagnosis: Metastatic Crohn Disease

Crohn disease (CD), a chronic inflammatory granulomatous disease of the gastrointestinal tract, has a wide spectrum of presentations.1 The condition may affect the vulva, perineum, or perianal skin by direct extension from the gastrointestinal tract or may appear as a separate and distinct cutaneous focus of disease referred to as metastatic Crohn disease (MCD).2

Cutaneous lesions of MCD include ulcers, fissures, sinus tracts, abscesses, and vegetative plaques, which typically extend in continuity with sites of intra-abdominal disease to the perineum, buttocks, or abdominal wall, as well as ostomy sites or incisional scars. Erythema nodosum and pyoderma gangrenosum are the most common nonspecific cutaneous manifestations. Other cutaneous lesions described in CD include polyarteritis nodosa, psoriasis, erythema multiforme, erythema elevatum diutinum, epidermolysis bullosa acquisita, acne fulminans, pyoderma faciale, neutrophilic lobular panniculitis, granulomatous vasculitis, and porokeratosis.3

Perianal skin is the most common site of cutaneous involvement in individuals with CD. It is a marker of more severe disease and is associated with multiple surgical interventions and frequent relapses and has been reported in 22% of patients with CD.4 Most already had an existing diagnosis of gastrointestinal CD, which was active in one-third of individuals; however, 20% presented with disease at nongastrointestinal sites 2 months to 4 years prior to developing the gastrointestinal CD manifestations.5 Our patient presented with lesions on the perianal skin of 2 years' duration and a 6-month history of diarrhea. A colonoscopy demonstrated shallow ulcers involving the ileocecal portion of the gut, colon, and rectum. A biopsy from intestinal mucosal tissue showed acute and chronic inflammation with necrosis mixed with granulomatous inflammation, suggestive of CD.

Microscopically, the dominant histologic features of MCD are similar to those of bowel lesions, including an inflammatory infiltrate commonly consisting of sterile noncaseating sarcoidal granulomas, foreign body and Langhans giant cells, epithelioid histiocytes, and plasma cells surrounded by numerous mononuclear cells within the dermis with occasional extension into the subcutis (quiz image). Less common features include collagen degeneration, an infiltrate rich in eosinophils, dermal edema, and mixed lichenoid and granulomatous dermatitis.6

Metastatic CD often is misdiagnosed. A detailed history and physical examination may help narrow the differential; however, biopsy is necessary to establish a diagnosis of MCD. The histologic differential diagnosis of sarcoidal granulomatous inflammation of genital skin includes sarcoidosis, rheumatoid arthritis, leprosy or other mycobacterial and parasitic infection, granulomatosis with polyangiitis (GPA), and granulomatous infiltrate associated with certain exogenous material (eg, silica, zirconium, beryllium, tattoo pigment).

Sarcoidosis is a multiorgan disease that most frequently affects the lungs, skin, and lymph nodes. Its etiopathogenesis has not been clearly elucidated.7 Cutaneous lesions are present in 20% to 35% of patients.8 Given the wide variability of clinical manifestations, cutaneous sarcoidosis is another one of the great imitators. Cutaneous lesions are classified as specific and nonspecific depending on the presence of noncaseating granulomas on histologic studies and include maculopapules, plaques, nodules, lupus pernio, scar infiltration, alopecia, ulcerative lesions, and hypopigmentation. The most common nonspecific lesion of cutaneous sarcoidosis is erythema nodosum. Other manifestations include calcifications, prurigo, erythema multiforme, nail clubbing, and Sweet syndrome.9

Histologic findings in sarcoidosis generally are independent of the respective organ and clinical disease presentation. The epidermis usually remains unchanged, whereas the dermis shows a superficial and deep nodular granulomatous infiltrate. Granulomas consist of epithelioid cells with only few giant cells and no surrounding lymphocytes or a very sparse lymphocytic infiltrate ("naked" granuloma)(Figure 1). Foreign bodies, including silica, are known to be able to induce sarcoid granulomas, especially in patients with sarcoidosis. A sarcoidal reaction in long-standing scar tissue points to a diagnosis of sarcoidosis.10

Figure 1. Cutaneous sarcoidosis. Granulomas with a sparse lymphocytic infiltrate (“naked” granuloma)(H&E, original magnification ×100).

Cutaneous tuberculosis primarily is caused by Mycobacterium tuberculosis and less frequently Mycobacterium bovis.11,12 The manifestations of cutaneous tuberculosis depends on various factors such as the type of infection, mode of dissemination, host immunity, and whether it is a first-time infection or a recurrence. In Europe, the head and neck regions are most frequently affected.13 Lesions present as red-brown papules coalescing into a plaque. The tissue, especially in central parts of the lesion, is fragile (probe phenomenon). Diascopy shows the typical apple jelly-like color.

Histologically, cutaneous tuberculosis is characterized by typical tuberculoid granulomas with epithelioid cells and Langhans giant cells at the center surrounded by lymphocytes (Figure 2). Caseous necrosis as well as fibrosis may occur,14,15 and the granulomas tend to coalesce.

Figure 2. Cutaneous tuberculosis. Tuberculoid granuloma with epithelioid cells surrounded by many lymphocytes with central caseous necrosis (H&E, original magnification ×100).

Granulomatosis with polyangiitis, formerly known as Wegener granulomatosis, is a complex, multisystemic disease with varying manifestations. The condition has been defined as a necrotizing granulomatous inflammation usually involving the upper and lower respiratory tracts and necrotizing vasculitis affecting predominantly small- to medium-sized vessels.16 The etiology of GPA is thought to be linked to environmental and infectious triggers inciting onset of disease in genetically predisposed individuals. Antineutrophil cytoplasmic antibodies play an important role in the pathogenesis of this disease. Cutaneous vasculitis secondary to GPA can present as papules, nodules, palpable purpura, ulcers resembling pyoderma gangrenosum, or necrotizing lesions leading to gangrene.17

The predominant histopathologic pattern in cutaneous lesions of GPA is leukocytoclastic vasculitis, which is present in up to 50% of biopsies.18 Characteristic findings that aid in establishing the diagnosis include histologic evidence of focal necrosis, fibrinoid degeneration, palisading granuloma surrounding neutrophils (Figure 3), and granulomatous vasculitis involving muscular vessel walls.19 Nonpalisading foci of necrosis or fibrinoid degeneration may precede the development of the typical palisading granuloma.20

Figure 3. Granulomatosis with polyangiitis. Palisaded granulomas with a central stellate collection of neutrophils. Multinucleate giant cells are present in the granulomas (H&E, original magnification ×100).

The typical histopathologic pattern of cutaneous amebiasis is ulceration with vascular necrosis (Figure 4).21 The organisms have prominent round nuclei and nucleoli and the cytoplasm may have a scalloped border.

Figure 4. Cutaneous amebiasis. Vascular necrosis with visible trophozoites (arrow)(H&E, original magnification ×400).

The Diagnosis: Metastatic Crohn Disease

Crohn disease (CD), a chronic inflammatory granulomatous disease of the gastrointestinal tract, has a wide spectrum of presentations.1 The condition may affect the vulva, perineum, or perianal skin by direct extension from the gastrointestinal tract or may appear as a separate and distinct cutaneous focus of disease referred to as metastatic Crohn disease (MCD).2

Cutaneous lesions of MCD include ulcers, fissures, sinus tracts, abscesses, and vegetative plaques, which typically extend in continuity with sites of intra-abdominal disease to the perineum, buttocks, or abdominal wall, as well as ostomy sites or incisional scars. Erythema nodosum and pyoderma gangrenosum are the most common nonspecific cutaneous manifestations. Other cutaneous lesions described in CD include polyarteritis nodosa, psoriasis, erythema multiforme, erythema elevatum diutinum, epidermolysis bullosa acquisita, acne fulminans, pyoderma faciale, neutrophilic lobular panniculitis, granulomatous vasculitis, and porokeratosis.3

Perianal skin is the most common site of cutaneous involvement in individuals with CD. It is a marker of more severe disease and is associated with multiple surgical interventions and frequent relapses and has been reported in 22% of patients with CD.4 Most already had an existing diagnosis of gastrointestinal CD, which was active in one-third of individuals; however, 20% presented with disease at nongastrointestinal sites 2 months to 4 years prior to developing the gastrointestinal CD manifestations.5 Our patient presented with lesions on the perianal skin of 2 years' duration and a 6-month history of diarrhea. A colonoscopy demonstrated shallow ulcers involving the ileocecal portion of the gut, colon, and rectum. A biopsy from intestinal mucosal tissue showed acute and chronic inflammation with necrosis mixed with granulomatous inflammation, suggestive of CD.

Microscopically, the dominant histologic features of MCD are similar to those of bowel lesions, including an inflammatory infiltrate commonly consisting of sterile noncaseating sarcoidal granulomas, foreign body and Langhans giant cells, epithelioid histiocytes, and plasma cells surrounded by numerous mononuclear cells within the dermis with occasional extension into the subcutis (quiz image). Less common features include collagen degeneration, an infiltrate rich in eosinophils, dermal edema, and mixed lichenoid and granulomatous dermatitis.6

Metastatic CD often is misdiagnosed. A detailed history and physical examination may help narrow the differential; however, biopsy is necessary to establish a diagnosis of MCD. The histologic differential diagnosis of sarcoidal granulomatous inflammation of genital skin includes sarcoidosis, rheumatoid arthritis, leprosy or other mycobacterial and parasitic infection, granulomatosis with polyangiitis (GPA), and granulomatous infiltrate associated with certain exogenous material (eg, silica, zirconium, beryllium, tattoo pigment).

Sarcoidosis is a multiorgan disease that most frequently affects the lungs, skin, and lymph nodes. Its etiopathogenesis has not been clearly elucidated.7 Cutaneous lesions are present in 20% to 35% of patients.8 Given the wide variability of clinical manifestations, cutaneous sarcoidosis is another one of the great imitators. Cutaneous lesions are classified as specific and nonspecific depending on the presence of noncaseating granulomas on histologic studies and include maculopapules, plaques, nodules, lupus pernio, scar infiltration, alopecia, ulcerative lesions, and hypopigmentation. The most common nonspecific lesion of cutaneous sarcoidosis is erythema nodosum. Other manifestations include calcifications, prurigo, erythema multiforme, nail clubbing, and Sweet syndrome.9

Histologic findings in sarcoidosis generally are independent of the respective organ and clinical disease presentation. The epidermis usually remains unchanged, whereas the dermis shows a superficial and deep nodular granulomatous infiltrate. Granulomas consist of epithelioid cells with only few giant cells and no surrounding lymphocytes or a very sparse lymphocytic infiltrate ("naked" granuloma)(Figure 1). Foreign bodies, including silica, are known to be able to induce sarcoid granulomas, especially in patients with sarcoidosis. A sarcoidal reaction in long-standing scar tissue points to a diagnosis of sarcoidosis.10

Figure 1. Cutaneous sarcoidosis. Granulomas with a sparse lymphocytic infiltrate (“naked” granuloma)(H&E, original magnification ×100).

Cutaneous tuberculosis primarily is caused by Mycobacterium tuberculosis and less frequently Mycobacterium bovis.11,12 The manifestations of cutaneous tuberculosis depends on various factors such as the type of infection, mode of dissemination, host immunity, and whether it is a first-time infection or a recurrence. In Europe, the head and neck regions are most frequently affected.13 Lesions present as red-brown papules coalescing into a plaque. The tissue, especially in central parts of the lesion, is fragile (probe phenomenon). Diascopy shows the typical apple jelly-like color.

Histologically, cutaneous tuberculosis is characterized by typical tuberculoid granulomas with epithelioid cells and Langhans giant cells at the center surrounded by lymphocytes (Figure 2). Caseous necrosis as well as fibrosis may occur,14,15 and the granulomas tend to coalesce.

Figure 2. Cutaneous tuberculosis. Tuberculoid granuloma with epithelioid cells surrounded by many lymphocytes with central caseous necrosis (H&E, original magnification ×100).

Granulomatosis with polyangiitis, formerly known as Wegener granulomatosis, is a complex, multisystemic disease with varying manifestations. The condition has been defined as a necrotizing granulomatous inflammation usually involving the upper and lower respiratory tracts and necrotizing vasculitis affecting predominantly small- to medium-sized vessels.16 The etiology of GPA is thought to be linked to environmental and infectious triggers inciting onset of disease in genetically predisposed individuals. Antineutrophil cytoplasmic antibodies play an important role in the pathogenesis of this disease. Cutaneous vasculitis secondary to GPA can present as papules, nodules, palpable purpura, ulcers resembling pyoderma gangrenosum, or necrotizing lesions leading to gangrene.17

The predominant histopathologic pattern in cutaneous lesions of GPA is leukocytoclastic vasculitis, which is present in up to 50% of biopsies.18 Characteristic findings that aid in establishing the diagnosis include histologic evidence of focal necrosis, fibrinoid degeneration, palisading granuloma surrounding neutrophils (Figure 3), and granulomatous vasculitis involving muscular vessel walls.19 Nonpalisading foci of necrosis or fibrinoid degeneration may precede the development of the typical palisading granuloma.20

Figure 3. Granulomatosis with polyangiitis. Palisaded granulomas with a central stellate collection of neutrophils. Multinucleate giant cells are present in the granulomas (H&E, original magnification ×100).

The typical histopathologic pattern of cutaneous amebiasis is ulceration with vascular necrosis (Figure 4).21 The organisms have prominent round nuclei and nucleoli and the cytoplasm may have a scalloped border.

Figure 4. Cutaneous amebiasis. Vascular necrosis with visible trophozoites (arrow)(H&E, original magnification ×400).

References
  1. Crohn BB, Ginzburg L, Oppenheimer GD. Landmark article Oct 25, 1932. regional ileitis. a pathologic and clinical entity. by Burril B. Crohn, Leon Gonzburg and Gordon D. Oppenheimer. JAMA. 1984;251:73-79.
  2. Parks AG, Morson BC, Pegum JS. Crohn's disease with cutaneous involvement. Proc R Soc Med. 1965;58:241-242.
  3. Weedon D. Miscellaneous conditions. Skin Pathology. 2nd ed. London, England: Churchill Livingstone; 2002:554.
  4. Samitz MH, Dana Jr AS, Rosenberg P. Cutaneous vasculitis in association with Crohn's disease. Cutis. 1970;6:51-56.
  5. Palamaras I, El-Jabbour J, Pietropaolo N, et al. Metastatic Crohn's disease: a review. J Eur Acad Dermatol Venereol. 2008;22:1033-1043.
  6. Aberumand B, Howard J, Howard J. Metastatic Crohn's disease: an approach to an uncommon but important cutaneous disorder: a review [published online January 3, 2017]. BioMed Res Int. 2017;2017:8192150.
  7. Mahony J, Helms SE, Brodell RT. The sarcoidal granuloma: a unifying hypothesis for an enigmatic response. Clin Dermatol. 2014;32:654-659.
  8. Freedberg IM, Eisen AZ, Wolf K, et al. Fitzpatrick's Dermatology in General Medicine. 6th ed. New York, NY: McGraw Hill; 2003.
  9. Fernandez-Faith E, McDonnell J. Cutaneous sarcoidosis: differential diagnosis. Clin Dermatol. 2007;25:276-287.
  10. Walsh NM, Hanly JG, Tremaine R, et al. Cutaneous sarcoidosis and foreign bodies. Am J Dermatopathol. 1993;15:203-207.
  11. Semaan R, Traboulsi R, Kanj S. Primary Mycobacterium tuberculosis complex cutaneous infection: report of two cases and literature review. Int J Infect Dis. 2008;12:472-477.
  12. Lai-Cheong JE, Perez A, Tang V, et al. Cutaneous manifestations of tuberculosis. Clin Exp Dermatol. 2007;32:461-466.
  13. Marcoval J, Servitje O, Moreno A, et al. Lupus vulgaris. clinical, histopathologic, and bacteriologic study of 10 cases. J Am Acad Dermatol. 1992;26:404-407.
  14. Tronnier M, Wolff H. Dermatosen mit granulomatöser Entzündung. Histopathologie der Haut. In: Kerl H, Garbe C, Cerroni L, et al, eds. New York, NY: Springer; 2003.
  15. Min KW, Ko JY, Park CK. Histopathological spectrum of cutaneous tuberculosis and non-tuberculous mycobacterial infections. J Cutan Pathol. 2012;39:582-595.
  16. Jennette JC, Falk RJ, Bacon PA, et al. 2012 Revised International Chapel Hill Consensus Conference nomenclature of vasculitides. Arthritis Rheum. 2013;65:1-11.
  17. Comfere NI, Macaron NC, Gibson LE. Cutaneous manifestations of Wegener's granulomatosis: a clinicopathologic study of 17 patients and correlation to antineutrophil cytoplasmic antibody status. J Cutan Pathol. 2007;34:739-747.
  18. Marzano AV, Vezzoli P, Berti E. Skin involvement in cutaneous and systemic vasculitis. Autoimmun Rev. 2012;12:467-476.
  19. Bramsiepe I, Danz B, Heine R, et al. Primary cutaneous manifestation of Wegener's granulomatosis [in German]. Dtsch Med Wochenschr. 2008;27:1429-1432.
  20. Daoud MS, Gibson LE, DeRemee RA, et al. Cutaneous Wegener's granulomatosis: clinical, histopathologic, and immunopathologic features of thirty patients. J Am Acad Dermatol. 1994;31:605-612.
  21. Guidry JA, Downing C, Tyring SK. Deep fungal infections, blastomycosis-like pyoderma, and granulomatous sexually transmitted infections. Dermatol Clin. 2015;33:595-607.
References
  1. Crohn BB, Ginzburg L, Oppenheimer GD. Landmark article Oct 25, 1932. regional ileitis. a pathologic and clinical entity. by Burril B. Crohn, Leon Gonzburg and Gordon D. Oppenheimer. JAMA. 1984;251:73-79.
  2. Parks AG, Morson BC, Pegum JS. Crohn's disease with cutaneous involvement. Proc R Soc Med. 1965;58:241-242.
  3. Weedon D. Miscellaneous conditions. Skin Pathology. 2nd ed. London, England: Churchill Livingstone; 2002:554.
  4. Samitz MH, Dana Jr AS, Rosenberg P. Cutaneous vasculitis in association with Crohn's disease. Cutis. 1970;6:51-56.
  5. Palamaras I, El-Jabbour J, Pietropaolo N, et al. Metastatic Crohn's disease: a review. J Eur Acad Dermatol Venereol. 2008;22:1033-1043.
  6. Aberumand B, Howard J, Howard J. Metastatic Crohn's disease: an approach to an uncommon but important cutaneous disorder: a review [published online January 3, 2017]. BioMed Res Int. 2017;2017:8192150.
  7. Mahony J, Helms SE, Brodell RT. The sarcoidal granuloma: a unifying hypothesis for an enigmatic response. Clin Dermatol. 2014;32:654-659.
  8. Freedberg IM, Eisen AZ, Wolf K, et al. Fitzpatrick's Dermatology in General Medicine. 6th ed. New York, NY: McGraw Hill; 2003.
  9. Fernandez-Faith E, McDonnell J. Cutaneous sarcoidosis: differential diagnosis. Clin Dermatol. 2007;25:276-287.
  10. Walsh NM, Hanly JG, Tremaine R, et al. Cutaneous sarcoidosis and foreign bodies. Am J Dermatopathol. 1993;15:203-207.
  11. Semaan R, Traboulsi R, Kanj S. Primary Mycobacterium tuberculosis complex cutaneous infection: report of two cases and literature review. Int J Infect Dis. 2008;12:472-477.
  12. Lai-Cheong JE, Perez A, Tang V, et al. Cutaneous manifestations of tuberculosis. Clin Exp Dermatol. 2007;32:461-466.
  13. Marcoval J, Servitje O, Moreno A, et al. Lupus vulgaris. clinical, histopathologic, and bacteriologic study of 10 cases. J Am Acad Dermatol. 1992;26:404-407.
  14. Tronnier M, Wolff H. Dermatosen mit granulomatöser Entzündung. Histopathologie der Haut. In: Kerl H, Garbe C, Cerroni L, et al, eds. New York, NY: Springer; 2003.
  15. Min KW, Ko JY, Park CK. Histopathological spectrum of cutaneous tuberculosis and non-tuberculous mycobacterial infections. J Cutan Pathol. 2012;39:582-595.
  16. Jennette JC, Falk RJ, Bacon PA, et al. 2012 Revised International Chapel Hill Consensus Conference nomenclature of vasculitides. Arthritis Rheum. 2013;65:1-11.
  17. Comfere NI, Macaron NC, Gibson LE. Cutaneous manifestations of Wegener's granulomatosis: a clinicopathologic study of 17 patients and correlation to antineutrophil cytoplasmic antibody status. J Cutan Pathol. 2007;34:739-747.
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  19. Bramsiepe I, Danz B, Heine R, et al. Primary cutaneous manifestation of Wegener's granulomatosis [in German]. Dtsch Med Wochenschr. 2008;27:1429-1432.
  20. Daoud MS, Gibson LE, DeRemee RA, et al. Cutaneous Wegener's granulomatosis: clinical, histopathologic, and immunopathologic features of thirty patients. J Am Acad Dermatol. 1994;31:605-612.
  21. Guidry JA, Downing C, Tyring SK. Deep fungal infections, blastomycosis-like pyoderma, and granulomatous sexually transmitted infections. Dermatol Clin. 2015;33:595-607.
Issue
Cutis - 101(4)
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Cutis - 101(4)
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248, 255-256, 259
Page Number
248, 255-256, 259
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Perianal Condyloma Acuminatum-like Plaque
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Perianal Condyloma Acuminatum-like Plaque
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H&E, original magnification ×40; inset, H&E, original magnification ×100.

A 19-year-old man presented with a perianal condyloma acuminatum-like plaque of 2 years' duration and a 6-month history of diarrhea.

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