Calciphylaxis and its diagnosis: A review

Area of Science:

• Nephrology
• Dermatology
• Pathology

Background:

• Calciphylaxis, also known as calcific uremic arteriolopathy (CUA), is a rare and often fatal complication associated with end-stage renal disease (ESRD).
• It presents as painful skin ulceration and necrosis, stemming from calcium deposition in small blood vessels and intimal fibrosis.
• The exact aetiopathogenesis of this small vessel vasculopathy remains complex and not fully understood.

Purpose of the Study:

• To outline the diagnostic steps for calciphylaxis.
• To emphasize the challenges in diagnosing this rare condition.

Main Methods:

• Review of diagnostic criteria and clinical presentation of calciphylaxis.
• Discussion of the utility and limitations of skin biopsy and radiographic features in diagnosis.

Main Results:

• Calciphylaxis is characterized by medial calcification, intimal fibrosis, and thrombotic occlusion of arterioles.
• Skin biopsy and radiographic findings are key diagnostic tools.
• Negative diagnostic results do not exclude calciphylaxis, highlighting the need for comprehensive evaluation.

Conclusions:

• Accurate diagnosis of calciphylaxis is crucial due to its severe prognosis.
• A multi-faceted diagnostic approach is often necessary, considering clinical, histological, and radiological evidence.
• Further research into the aetiopathogenesis may improve diagnostic accuracy and treatment strategies.