The Shield Sign of Cutaneous Metastases Is Associated With Carcinoma Hemorrhagiectoides

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The Shield Sign of Cutaneous Metastases Is Associated With Carcinoma Hemorrhagiectoides

To the Editor:

We read with interest the Case Letter from Wang et al1 (Cutis. 2023;112:E13-E15) of a 60-year-old man whose metastatic salivary duct adenocarcinoma manifested with the shield sign as well as carcinoma hemorrhagiectoides. Cutaneous metastases have seldom been described in association with salivary duct carcinoma.2-7 In addition, carcinoma hemorrhagiectoides–associated shield sign has not been commonly reported.5,8-12

Salivary duct carcinoma—an uncommon head and neck malignancy characterized by androgen receptor expression—rarely is associated with cutaneous metastases. Based on a PubMed search of articles indexed for MEDLINE using the terms cutaneous, metastatic, salivary duct carcinoma, and/or skin, including the patient described by Wang et al,1 there have been 8 individuals with cutaneous metastases from this cancer. The morphology of the cutaneous metastases has varied from angiomatous to angiokeratomalike (black and keratotic) papules, bullae, macules (red), papules and nodules (erythematous and scaly), plaques (cellulitislike and confluent that were purpuric, hemorrhagic, and violaceous), pseudovesicles, purpuric papules, subcutaneous nodules, and an ulcer (superficial and mimicked a basal cell carcinoma).1-7 Remarkably, 4 of 8 patients (50%) with salivary duct carcinoma cutaneous metastases presented with a shield sign,5,7 including the case reported by Wang et al.1

The shield sign is a distinctive clinical manifestation of cutaneous metastasis.10 It was named to describe the skin metastases located predominantly on the chest area that would be covered by a medieval knight’s shield5,10,12; metastatic lesions also have been noted on the proximal arm and/or the upper back in a similar distribution.8,9 To date, based on a PubMed search of articles indexed for MEDLINE using the search terms breast cancer, carcinoma, hemorrhagiectoides, metastases, salivary duct carcinoma, shield, and/or sign, the shield sign has been described in 6 patients with cutaneous metastases either from salivary duct carcinoma (4 patients)1,5,7 or breast cancer (2 patients).8,9 The shield sign pathologically corresponds to carcinoma hemorrhagiectoides, an inflammatory pattern of cutaneous metastases.5,11

Inflammatory cutaneous metastatic carcinoma has 3 distinctive clinical and pathologic manifestations.11 Carcinoma erysipelatoides and carcinoma telangiectoides were the earlier described variants.11 In 2012, carcinoma hemorrhagiectoides was described as the third pattern of inflammatory cutaneous metastasis.5

Carcinoma erysipelatoides, which clinically mimics cutaneous streptococcal cellulitis, appears as a well-defined erythematous patch or plaque; the tumor cells can be found in the lymphatic vessels and either are absent or minimally present in the dermis. Carcinoma telangiectoides, which clinically mimics idiopathic telangiectases, appears as an erythematous patch with prominent telangiectases; the tumor cells can be found in the blood vessels and are either absent or minimally present in the dermis. Carcinoma hemorrhagiectoides appears as purpuric or violaceous indurated plaques; the tumor cells are not only found in the blood vessels, in the lymphatic vessels, or both, but also can be mildly to extensively present in the dermis.5,10,11

In conclusion, the shield sign is a unique presentation of inflammatory cutaneous metastatic carcinoma, which is associated with carcinoma hemorrhagiectoides. The clinical features of the infiltrated plaques correspond to the presence of tumor cells in the blood vessels, lymphatic vessels, and the dermis; in addition, the purpuric and violaceous appearance correlates with the presence of extravasated erythrocytes or hemorrhage in the dermis. To date, half of the patients with skin metastases from salivary duct carcinoma have presented with carcinoma hemorrhagiectoides–associated shield sign.

Authors’ Response

We appreciate and welcome the comments provided by the authors. Drawing attention to unusual pathologic manifestations of cutaneous metastatic salivary duct carcinoma manifesting with the shield sign, the authors present a comprehensive review of 3 distinctive presentations: carcinoma erysipelatoides, carcinoma telangiectoides, and carcinoma hemorrhagiectoides. The inclusion of these variants enriches the discussion and makes this letter a valuable addition to the literature on cutaneous metastatic carcinoma, particularly metastatic salivary duct carcinoma.

Xintong Wang, MD; William H. Westra, MD

From the Department of Pathology, Icahn School of Medicine at Mount Sinai, New York, New York.

The authors report no conflict of interest.

References
  1. Wang X, Vyas NS, Alghamdi AA, et al. Cutaneous presentation of metastatic salivary duct carcinoma. Cutis. 2023;112:E13-E15.
  2. Pollock JL, Catalano E. Metastatic ductal carcinoma of the parotid gland in a patient with sarcoidosis. Arch Dermatol. 1979;115:1098-1099.
  3. Pollock JL. Metastatic carcinoma of the parotid gland resembling carcinoma of the breast. J Am Acad Dermatol. 1996;34:1093.
  4. Aygit AC, Top H, Cakir B, et al. Salivary duct carcinoma of the parotid gland metastasizing to the skin: a case report and review of the literature. Am J Dermatopathol. 2005;27:48-50.
  5. Cohen PR, Prieto VG, Piha-Paul SA, et al. The “shield sign” in two men with metastatic salivary duct carcinoma to the skin: cutaneous metastases presenting as carcinoma hemorrhagiectoides. J Clin Aesthet Dermatol. 2012;5:27-36.
  6. Chakari W, Andersen L, Anderson JL. Cutaneous metastases from salivary duct carcinoma of the submandibular gland. Case Rep Dermatol. 2017;9:254-258.
  7. Shin JY, Eun DH, Lee JY, et al. A case of cutaneous metastases of salivary duct carcinoma mimicking radiation recall dermatitis. Ann Dermatol. 2020;32:436-438.
  8. Aravena RC, Aravena DC, Velasco MJ, et al. Carcinoma hemorrhagiectoides: case report of an uncommon presentation of cutaneous metastatic breast carcinoma. Dermatol Online J. 2017;23:13030/qt3hn3z850.
  9. Smith KA, Basko-Plluska J, Kothari AD, et al. Cutaneous metastatic breast adenocarcinoma. Cutis. 2020;105:E20-E22.
  10. Cohen PR, Kurzrock R. Cutaneous metastatic cancer: carcinoma hemorrhagiectoides presenting as the shield sign. Cureus. 2021;13:e12627.
  11. Cohen PR. Pleomorphic appearance of breast cancer cutaneous metastases. Cureus. 2021;13:e20301.
  12. Cohen PR, Prieto VG, Kurzrock R. Tumor lysis syndrome: introduction of a cutaneous variant and a new classification system. Cureus. 2021;13:e13816.
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Author and Disclosure Information

Dr. Cohen is from the Department of Dermatology, University of California, Davis Medical Center, Sacramento, and Touro University California College of Osteopathic Medicine, Vallejo. Dr. Prieto is from the Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston. Dr. Kurzrock is from the Department of Medicine, Medical College of Wisconsin Cancer Center, Milwaukee; Mellowes Center for Genome Sciences and Precision Medicine, Medical College of Wisconsin, Milwaukee; Clinical Trials Unit, Worldwide Innovative Network (WIN) for Personalized Cancer Therapy, Villejuif, France; and University of Nebraska, Omaha.

Dr. Cohen reports no conflict of interest. Dr. Prieto is a consultant for Castle Biosciences, Merck & Co, and Myriad Pharma. Dr. Kurzrock has received research funding from Boehringer Ingelheim, Debiopharm, Foundation Medicine, Genentech, Grifols, Guardant Health, Incyte Corporation, Konica Minolta, MedImmune, Merck Serono, OmniSeq, Pfizer, Sequenom, Takeda Pharmaceutical Company, and TopAlliance Biosciences; has received consultant and/or speaker fees and/or has been on an advisory board for Actuate Therapeutics, Caris Life Sciences, Datar Cancer Genetics, Neomed, Pfizer, Roche, and XBiotech; has an equity interest in CureMatch and IDbyDNA; serves on the board of CureMatch and CureMetrix; and is a co-founder of CureMatch.

Correspondence: Philip R. Cohen, MD, 10991 Twinleaf Court, San Diego, CA 92131 (mitehead@gmail.com).

Cutis. 2024 July;114(1):E41-E42. doi:10.12788/cutis.1066

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Author and Disclosure Information

Dr. Cohen is from the Department of Dermatology, University of California, Davis Medical Center, Sacramento, and Touro University California College of Osteopathic Medicine, Vallejo. Dr. Prieto is from the Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston. Dr. Kurzrock is from the Department of Medicine, Medical College of Wisconsin Cancer Center, Milwaukee; Mellowes Center for Genome Sciences and Precision Medicine, Medical College of Wisconsin, Milwaukee; Clinical Trials Unit, Worldwide Innovative Network (WIN) for Personalized Cancer Therapy, Villejuif, France; and University of Nebraska, Omaha.

Dr. Cohen reports no conflict of interest. Dr. Prieto is a consultant for Castle Biosciences, Merck & Co, and Myriad Pharma. Dr. Kurzrock has received research funding from Boehringer Ingelheim, Debiopharm, Foundation Medicine, Genentech, Grifols, Guardant Health, Incyte Corporation, Konica Minolta, MedImmune, Merck Serono, OmniSeq, Pfizer, Sequenom, Takeda Pharmaceutical Company, and TopAlliance Biosciences; has received consultant and/or speaker fees and/or has been on an advisory board for Actuate Therapeutics, Caris Life Sciences, Datar Cancer Genetics, Neomed, Pfizer, Roche, and XBiotech; has an equity interest in CureMatch and IDbyDNA; serves on the board of CureMatch and CureMetrix; and is a co-founder of CureMatch.

Correspondence: Philip R. Cohen, MD, 10991 Twinleaf Court, San Diego, CA 92131 (mitehead@gmail.com).

Cutis. 2024 July;114(1):E41-E42. doi:10.12788/cutis.1066

Author and Disclosure Information

Dr. Cohen is from the Department of Dermatology, University of California, Davis Medical Center, Sacramento, and Touro University California College of Osteopathic Medicine, Vallejo. Dr. Prieto is from the Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston. Dr. Kurzrock is from the Department of Medicine, Medical College of Wisconsin Cancer Center, Milwaukee; Mellowes Center for Genome Sciences and Precision Medicine, Medical College of Wisconsin, Milwaukee; Clinical Trials Unit, Worldwide Innovative Network (WIN) for Personalized Cancer Therapy, Villejuif, France; and University of Nebraska, Omaha.

Dr. Cohen reports no conflict of interest. Dr. Prieto is a consultant for Castle Biosciences, Merck & Co, and Myriad Pharma. Dr. Kurzrock has received research funding from Boehringer Ingelheim, Debiopharm, Foundation Medicine, Genentech, Grifols, Guardant Health, Incyte Corporation, Konica Minolta, MedImmune, Merck Serono, OmniSeq, Pfizer, Sequenom, Takeda Pharmaceutical Company, and TopAlliance Biosciences; has received consultant and/or speaker fees and/or has been on an advisory board for Actuate Therapeutics, Caris Life Sciences, Datar Cancer Genetics, Neomed, Pfizer, Roche, and XBiotech; has an equity interest in CureMatch and IDbyDNA; serves on the board of CureMatch and CureMetrix; and is a co-founder of CureMatch.

Correspondence: Philip R. Cohen, MD, 10991 Twinleaf Court, San Diego, CA 92131 (mitehead@gmail.com).

Cutis. 2024 July;114(1):E41-E42. doi:10.12788/cutis.1066

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To the Editor:

We read with interest the Case Letter from Wang et al1 (Cutis. 2023;112:E13-E15) of a 60-year-old man whose metastatic salivary duct adenocarcinoma manifested with the shield sign as well as carcinoma hemorrhagiectoides. Cutaneous metastases have seldom been described in association with salivary duct carcinoma.2-7 In addition, carcinoma hemorrhagiectoides–associated shield sign has not been commonly reported.5,8-12

Salivary duct carcinoma—an uncommon head and neck malignancy characterized by androgen receptor expression—rarely is associated with cutaneous metastases. Based on a PubMed search of articles indexed for MEDLINE using the terms cutaneous, metastatic, salivary duct carcinoma, and/or skin, including the patient described by Wang et al,1 there have been 8 individuals with cutaneous metastases from this cancer. The morphology of the cutaneous metastases has varied from angiomatous to angiokeratomalike (black and keratotic) papules, bullae, macules (red), papules and nodules (erythematous and scaly), plaques (cellulitislike and confluent that were purpuric, hemorrhagic, and violaceous), pseudovesicles, purpuric papules, subcutaneous nodules, and an ulcer (superficial and mimicked a basal cell carcinoma).1-7 Remarkably, 4 of 8 patients (50%) with salivary duct carcinoma cutaneous metastases presented with a shield sign,5,7 including the case reported by Wang et al.1

The shield sign is a distinctive clinical manifestation of cutaneous metastasis.10 It was named to describe the skin metastases located predominantly on the chest area that would be covered by a medieval knight’s shield5,10,12; metastatic lesions also have been noted on the proximal arm and/or the upper back in a similar distribution.8,9 To date, based on a PubMed search of articles indexed for MEDLINE using the search terms breast cancer, carcinoma, hemorrhagiectoides, metastases, salivary duct carcinoma, shield, and/or sign, the shield sign has been described in 6 patients with cutaneous metastases either from salivary duct carcinoma (4 patients)1,5,7 or breast cancer (2 patients).8,9 The shield sign pathologically corresponds to carcinoma hemorrhagiectoides, an inflammatory pattern of cutaneous metastases.5,11

Inflammatory cutaneous metastatic carcinoma has 3 distinctive clinical and pathologic manifestations.11 Carcinoma erysipelatoides and carcinoma telangiectoides were the earlier described variants.11 In 2012, carcinoma hemorrhagiectoides was described as the third pattern of inflammatory cutaneous metastasis.5

Carcinoma erysipelatoides, which clinically mimics cutaneous streptococcal cellulitis, appears as a well-defined erythematous patch or plaque; the tumor cells can be found in the lymphatic vessels and either are absent or minimally present in the dermis. Carcinoma telangiectoides, which clinically mimics idiopathic telangiectases, appears as an erythematous patch with prominent telangiectases; the tumor cells can be found in the blood vessels and are either absent or minimally present in the dermis. Carcinoma hemorrhagiectoides appears as purpuric or violaceous indurated plaques; the tumor cells are not only found in the blood vessels, in the lymphatic vessels, or both, but also can be mildly to extensively present in the dermis.5,10,11

In conclusion, the shield sign is a unique presentation of inflammatory cutaneous metastatic carcinoma, which is associated with carcinoma hemorrhagiectoides. The clinical features of the infiltrated plaques correspond to the presence of tumor cells in the blood vessels, lymphatic vessels, and the dermis; in addition, the purpuric and violaceous appearance correlates with the presence of extravasated erythrocytes or hemorrhage in the dermis. To date, half of the patients with skin metastases from salivary duct carcinoma have presented with carcinoma hemorrhagiectoides–associated shield sign.

Authors’ Response

We appreciate and welcome the comments provided by the authors. Drawing attention to unusual pathologic manifestations of cutaneous metastatic salivary duct carcinoma manifesting with the shield sign, the authors present a comprehensive review of 3 distinctive presentations: carcinoma erysipelatoides, carcinoma telangiectoides, and carcinoma hemorrhagiectoides. The inclusion of these variants enriches the discussion and makes this letter a valuable addition to the literature on cutaneous metastatic carcinoma, particularly metastatic salivary duct carcinoma.

Xintong Wang, MD; William H. Westra, MD

From the Department of Pathology, Icahn School of Medicine at Mount Sinai, New York, New York.

The authors report no conflict of interest.

To the Editor:

We read with interest the Case Letter from Wang et al1 (Cutis. 2023;112:E13-E15) of a 60-year-old man whose metastatic salivary duct adenocarcinoma manifested with the shield sign as well as carcinoma hemorrhagiectoides. Cutaneous metastases have seldom been described in association with salivary duct carcinoma.2-7 In addition, carcinoma hemorrhagiectoides–associated shield sign has not been commonly reported.5,8-12

Salivary duct carcinoma—an uncommon head and neck malignancy characterized by androgen receptor expression—rarely is associated with cutaneous metastases. Based on a PubMed search of articles indexed for MEDLINE using the terms cutaneous, metastatic, salivary duct carcinoma, and/or skin, including the patient described by Wang et al,1 there have been 8 individuals with cutaneous metastases from this cancer. The morphology of the cutaneous metastases has varied from angiomatous to angiokeratomalike (black and keratotic) papules, bullae, macules (red), papules and nodules (erythematous and scaly), plaques (cellulitislike and confluent that were purpuric, hemorrhagic, and violaceous), pseudovesicles, purpuric papules, subcutaneous nodules, and an ulcer (superficial and mimicked a basal cell carcinoma).1-7 Remarkably, 4 of 8 patients (50%) with salivary duct carcinoma cutaneous metastases presented with a shield sign,5,7 including the case reported by Wang et al.1

The shield sign is a distinctive clinical manifestation of cutaneous metastasis.10 It was named to describe the skin metastases located predominantly on the chest area that would be covered by a medieval knight’s shield5,10,12; metastatic lesions also have been noted on the proximal arm and/or the upper back in a similar distribution.8,9 To date, based on a PubMed search of articles indexed for MEDLINE using the search terms breast cancer, carcinoma, hemorrhagiectoides, metastases, salivary duct carcinoma, shield, and/or sign, the shield sign has been described in 6 patients with cutaneous metastases either from salivary duct carcinoma (4 patients)1,5,7 or breast cancer (2 patients).8,9 The shield sign pathologically corresponds to carcinoma hemorrhagiectoides, an inflammatory pattern of cutaneous metastases.5,11

Inflammatory cutaneous metastatic carcinoma has 3 distinctive clinical and pathologic manifestations.11 Carcinoma erysipelatoides and carcinoma telangiectoides were the earlier described variants.11 In 2012, carcinoma hemorrhagiectoides was described as the third pattern of inflammatory cutaneous metastasis.5

Carcinoma erysipelatoides, which clinically mimics cutaneous streptococcal cellulitis, appears as a well-defined erythematous patch or plaque; the tumor cells can be found in the lymphatic vessels and either are absent or minimally present in the dermis. Carcinoma telangiectoides, which clinically mimics idiopathic telangiectases, appears as an erythematous patch with prominent telangiectases; the tumor cells can be found in the blood vessels and are either absent or minimally present in the dermis. Carcinoma hemorrhagiectoides appears as purpuric or violaceous indurated plaques; the tumor cells are not only found in the blood vessels, in the lymphatic vessels, or both, but also can be mildly to extensively present in the dermis.5,10,11

In conclusion, the shield sign is a unique presentation of inflammatory cutaneous metastatic carcinoma, which is associated with carcinoma hemorrhagiectoides. The clinical features of the infiltrated plaques correspond to the presence of tumor cells in the blood vessels, lymphatic vessels, and the dermis; in addition, the purpuric and violaceous appearance correlates with the presence of extravasated erythrocytes or hemorrhage in the dermis. To date, half of the patients with skin metastases from salivary duct carcinoma have presented with carcinoma hemorrhagiectoides–associated shield sign.

Authors’ Response

We appreciate and welcome the comments provided by the authors. Drawing attention to unusual pathologic manifestations of cutaneous metastatic salivary duct carcinoma manifesting with the shield sign, the authors present a comprehensive review of 3 distinctive presentations: carcinoma erysipelatoides, carcinoma telangiectoides, and carcinoma hemorrhagiectoides. The inclusion of these variants enriches the discussion and makes this letter a valuable addition to the literature on cutaneous metastatic carcinoma, particularly metastatic salivary duct carcinoma.

Xintong Wang, MD; William H. Westra, MD

From the Department of Pathology, Icahn School of Medicine at Mount Sinai, New York, New York.

The authors report no conflict of interest.

References
  1. Wang X, Vyas NS, Alghamdi AA, et al. Cutaneous presentation of metastatic salivary duct carcinoma. Cutis. 2023;112:E13-E15.
  2. Pollock JL, Catalano E. Metastatic ductal carcinoma of the parotid gland in a patient with sarcoidosis. Arch Dermatol. 1979;115:1098-1099.
  3. Pollock JL. Metastatic carcinoma of the parotid gland resembling carcinoma of the breast. J Am Acad Dermatol. 1996;34:1093.
  4. Aygit AC, Top H, Cakir B, et al. Salivary duct carcinoma of the parotid gland metastasizing to the skin: a case report and review of the literature. Am J Dermatopathol. 2005;27:48-50.
  5. Cohen PR, Prieto VG, Piha-Paul SA, et al. The “shield sign” in two men with metastatic salivary duct carcinoma to the skin: cutaneous metastases presenting as carcinoma hemorrhagiectoides. J Clin Aesthet Dermatol. 2012;5:27-36.
  6. Chakari W, Andersen L, Anderson JL. Cutaneous metastases from salivary duct carcinoma of the submandibular gland. Case Rep Dermatol. 2017;9:254-258.
  7. Shin JY, Eun DH, Lee JY, et al. A case of cutaneous metastases of salivary duct carcinoma mimicking radiation recall dermatitis. Ann Dermatol. 2020;32:436-438.
  8. Aravena RC, Aravena DC, Velasco MJ, et al. Carcinoma hemorrhagiectoides: case report of an uncommon presentation of cutaneous metastatic breast carcinoma. Dermatol Online J. 2017;23:13030/qt3hn3z850.
  9. Smith KA, Basko-Plluska J, Kothari AD, et al. Cutaneous metastatic breast adenocarcinoma. Cutis. 2020;105:E20-E22.
  10. Cohen PR, Kurzrock R. Cutaneous metastatic cancer: carcinoma hemorrhagiectoides presenting as the shield sign. Cureus. 2021;13:e12627.
  11. Cohen PR. Pleomorphic appearance of breast cancer cutaneous metastases. Cureus. 2021;13:e20301.
  12. Cohen PR, Prieto VG, Kurzrock R. Tumor lysis syndrome: introduction of a cutaneous variant and a new classification system. Cureus. 2021;13:e13816.
References
  1. Wang X, Vyas NS, Alghamdi AA, et al. Cutaneous presentation of metastatic salivary duct carcinoma. Cutis. 2023;112:E13-E15.
  2. Pollock JL, Catalano E. Metastatic ductal carcinoma of the parotid gland in a patient with sarcoidosis. Arch Dermatol. 1979;115:1098-1099.
  3. Pollock JL. Metastatic carcinoma of the parotid gland resembling carcinoma of the breast. J Am Acad Dermatol. 1996;34:1093.
  4. Aygit AC, Top H, Cakir B, et al. Salivary duct carcinoma of the parotid gland metastasizing to the skin: a case report and review of the literature. Am J Dermatopathol. 2005;27:48-50.
  5. Cohen PR, Prieto VG, Piha-Paul SA, et al. The “shield sign” in two men with metastatic salivary duct carcinoma to the skin: cutaneous metastases presenting as carcinoma hemorrhagiectoides. J Clin Aesthet Dermatol. 2012;5:27-36.
  6. Chakari W, Andersen L, Anderson JL. Cutaneous metastases from salivary duct carcinoma of the submandibular gland. Case Rep Dermatol. 2017;9:254-258.
  7. Shin JY, Eun DH, Lee JY, et al. A case of cutaneous metastases of salivary duct carcinoma mimicking radiation recall dermatitis. Ann Dermatol. 2020;32:436-438.
  8. Aravena RC, Aravena DC, Velasco MJ, et al. Carcinoma hemorrhagiectoides: case report of an uncommon presentation of cutaneous metastatic breast carcinoma. Dermatol Online J. 2017;23:13030/qt3hn3z850.
  9. Smith KA, Basko-Plluska J, Kothari AD, et al. Cutaneous metastatic breast adenocarcinoma. Cutis. 2020;105:E20-E22.
  10. Cohen PR, Kurzrock R. Cutaneous metastatic cancer: carcinoma hemorrhagiectoides presenting as the shield sign. Cureus. 2021;13:e12627.
  11. Cohen PR. Pleomorphic appearance of breast cancer cutaneous metastases. Cureus. 2021;13:e20301.
  12. Cohen PR, Prieto VG, Kurzrock R. Tumor lysis syndrome: introduction of a cutaneous variant and a new classification system. Cureus. 2021;13:e13816.
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