There's deposition in the skin that can also lead to skin necrosis. Deposition at the retina can cause blindness.
Fatal cutaneous necrosis mimicking calciphylaxis in a patient with type I primary hyperoxaluria. Arch Dermatol. 1995; 131: 821-823 Arbus G.S. Sniderman S.
Aetiology Acute tubular necrosis, enteric hyperoxaluria, cystic fibrosis, coeliac disease, diabetes, foods (e.g., beef greens, rhubarb, spinach, beets, chard, okra, peanuts