We report a patient with severe bilateral leg ulceration that was resistant to 
treatment. A biopsy confirmed the cause as calciphylaxis. Calciphylaxis refers 
to a syndrome of calcium deposition in the small and intermediate dermal 
vasculature which can lead to epidermal ischaemia, ulceration and necrosis. Most 
cases occur in those with chronic renal failure and secondary 
hyperparathyroidism. We describe the rare presentation of calciphylaxis in a 
patient with normal renal function and primary hyperparathyroidism who had many 
classical features. Unfortunately she developed gangrene, sepsis and died.