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Lower Extremity Ulcers
A 62‐year‐old man with hypertension, diabetes mellitus, and coronary artery disease (CAD), on peritoneal dialysis, presented with a nonhealing left lower extremity ulcer (Figure 1). Treatment with empiric antibiotics showed no improvement and cultures remained persistently negative. A surgical specimen revealed pathological changes consistent with calciphylaxis (Figures 2 and 3).
With a mortality between 30% and 80% and a 5‐year survival of 40%,1‐3 calciphylaxis, or calcific uremic arteriolopathy, is devastating. Dialysis and a calcium‐phosphate product above 60 mg2/dL2 increased the index of suspicion (our patient = 70).4 As visual findings may resemble vasculitis or atherosclerotic vascular lesions, biopsy remains the mainstay of diagnosis. Findings include intimal fibrosis, medial calcification, panniculitis, and fat necrosis.5
Management involves aggressive phosphate binding, preventing superinfection, and surgical debridement.6 The evidence for newer therapies (sodium thiosulfate, cinacalcet) appears promising,7‐10 while the benefit of parathyroidectomy is equivocal.11 Despite therapy, our patient developed new lesions (right lower extremity, penis) and opted for hospice services.
- Cecil Essentials of Medicine.6th ed.New York:W.B. Saunders;2003. , , , .
- Calciphylaxis: pathogenesis and therapy.J Cutan Med Surg.1998;2(4):245‐248. .
- Calciphylaxis: diagnosis and treatment.Adv Skin Wound Care.2001;14(6):309‐312. , .
- Calciphylaxis.Postgrad Med J.2001;77(911):557‐561. , , .
- Silverberg SG, DeLellis RA, Frable WJ, LiVolsi VA, Wick MR, eds.Silverberg's Principles and Practice of Surgical Pathology and Cytopathology. Vol.1‐2.4th ed.Philadelphia:Elsevier Churchill Livingstone;2006.
- Calciphylaxis: medical and surgical management of chronic extensive wounds in a renal dialysis population.Plast Reconstr Surg.2004;113(1):304‐312. , , , .
- Cinacalcet for secondary hyperparathyroidism in patients receiving hemodialysis.N Engl J Med.2004;350(15):1516‐1525. , , , et al.
- Rapid resolution of calciphylaxis with intravenous sodium thiosulfate and continuous venovenous haemofiltration using low calcium replacement fluid: case report.Nephrol Dial Transplant.2005;20(6):1260‐1262. , , .
- Successful treatment of calciphylaxis with intravenous sodium thiosulfate.Am J Kidney Dis.2004;43(6):1104‐1108. , , , .
- Intraperitoneal sodium thiosulfate for the treatment of calciphylaxis.Ren Fail.2006;28(4):361‐363. , .
- Therapy for calciphylaxis: an outcome analysis.Surgery.2003;134(6):941‐944; discussion 944‐945. , , , , .
A 62‐year‐old man with hypertension, diabetes mellitus, and coronary artery disease (CAD), on peritoneal dialysis, presented with a nonhealing left lower extremity ulcer (Figure 1). Treatment with empiric antibiotics showed no improvement and cultures remained persistently negative. A surgical specimen revealed pathological changes consistent with calciphylaxis (Figures 2 and 3).
With a mortality between 30% and 80% and a 5‐year survival of 40%,1‐3 calciphylaxis, or calcific uremic arteriolopathy, is devastating. Dialysis and a calcium‐phosphate product above 60 mg2/dL2 increased the index of suspicion (our patient = 70).4 As visual findings may resemble vasculitis or atherosclerotic vascular lesions, biopsy remains the mainstay of diagnosis. Findings include intimal fibrosis, medial calcification, panniculitis, and fat necrosis.5
Management involves aggressive phosphate binding, preventing superinfection, and surgical debridement.6 The evidence for newer therapies (sodium thiosulfate, cinacalcet) appears promising,7‐10 while the benefit of parathyroidectomy is equivocal.11 Despite therapy, our patient developed new lesions (right lower extremity, penis) and opted for hospice services.
A 62‐year‐old man with hypertension, diabetes mellitus, and coronary artery disease (CAD), on peritoneal dialysis, presented with a nonhealing left lower extremity ulcer (Figure 1). Treatment with empiric antibiotics showed no improvement and cultures remained persistently negative. A surgical specimen revealed pathological changes consistent with calciphylaxis (Figures 2 and 3).
With a mortality between 30% and 80% and a 5‐year survival of 40%,1‐3 calciphylaxis, or calcific uremic arteriolopathy, is devastating. Dialysis and a calcium‐phosphate product above 60 mg2/dL2 increased the index of suspicion (our patient = 70).4 As visual findings may resemble vasculitis or atherosclerotic vascular lesions, biopsy remains the mainstay of diagnosis. Findings include intimal fibrosis, medial calcification, panniculitis, and fat necrosis.5
Management involves aggressive phosphate binding, preventing superinfection, and surgical debridement.6 The evidence for newer therapies (sodium thiosulfate, cinacalcet) appears promising,7‐10 while the benefit of parathyroidectomy is equivocal.11 Despite therapy, our patient developed new lesions (right lower extremity, penis) and opted for hospice services.
- Cecil Essentials of Medicine.6th ed.New York:W.B. Saunders;2003. , , , .
- Calciphylaxis: pathogenesis and therapy.J Cutan Med Surg.1998;2(4):245‐248. .
- Calciphylaxis: diagnosis and treatment.Adv Skin Wound Care.2001;14(6):309‐312. , .
- Calciphylaxis.Postgrad Med J.2001;77(911):557‐561. , , .
- Silverberg SG, DeLellis RA, Frable WJ, LiVolsi VA, Wick MR, eds.Silverberg's Principles and Practice of Surgical Pathology and Cytopathology. Vol.1‐2.4th ed.Philadelphia:Elsevier Churchill Livingstone;2006.
- Calciphylaxis: medical and surgical management of chronic extensive wounds in a renal dialysis population.Plast Reconstr Surg.2004;113(1):304‐312. , , , .
- Cinacalcet for secondary hyperparathyroidism in patients receiving hemodialysis.N Engl J Med.2004;350(15):1516‐1525. , , , et al.
- Rapid resolution of calciphylaxis with intravenous sodium thiosulfate and continuous venovenous haemofiltration using low calcium replacement fluid: case report.Nephrol Dial Transplant.2005;20(6):1260‐1262. , , .
- Successful treatment of calciphylaxis with intravenous sodium thiosulfate.Am J Kidney Dis.2004;43(6):1104‐1108. , , , .
- Intraperitoneal sodium thiosulfate for the treatment of calciphylaxis.Ren Fail.2006;28(4):361‐363. , .
- Therapy for calciphylaxis: an outcome analysis.Surgery.2003;134(6):941‐944; discussion 944‐945. , , , , .
- Cecil Essentials of Medicine.6th ed.New York:W.B. Saunders;2003. , , , .
- Calciphylaxis: pathogenesis and therapy.J Cutan Med Surg.1998;2(4):245‐248. .
- Calciphylaxis: diagnosis and treatment.Adv Skin Wound Care.2001;14(6):309‐312. , .
- Calciphylaxis.Postgrad Med J.2001;77(911):557‐561. , , .
- Silverberg SG, DeLellis RA, Frable WJ, LiVolsi VA, Wick MR, eds.Silverberg's Principles and Practice of Surgical Pathology and Cytopathology. Vol.1‐2.4th ed.Philadelphia:Elsevier Churchill Livingstone;2006.
- Calciphylaxis: medical and surgical management of chronic extensive wounds in a renal dialysis population.Plast Reconstr Surg.2004;113(1):304‐312. , , , .
- Cinacalcet for secondary hyperparathyroidism in patients receiving hemodialysis.N Engl J Med.2004;350(15):1516‐1525. , , , et al.
- Rapid resolution of calciphylaxis with intravenous sodium thiosulfate and continuous venovenous haemofiltration using low calcium replacement fluid: case report.Nephrol Dial Transplant.2005;20(6):1260‐1262. , , .
- Successful treatment of calciphylaxis with intravenous sodium thiosulfate.Am J Kidney Dis.2004;43(6):1104‐1108. , , , .
- Intraperitoneal sodium thiosulfate for the treatment of calciphylaxis.Ren Fail.2006;28(4):361‐363. , .
- Therapy for calciphylaxis: an outcome analysis.Surgery.2003;134(6):941‐944; discussion 944‐945. , , , , .