[The nightmare of calciphylaxis].

Calciphylaxis, also known as "calcific uremic arteriolopathy", is an extremely rare and complex disorder, commonly found in patients with end-stage renal disease. Due to a calcium-phosphate balance disorder, there is a process of calcification in the tunica media of peripheral blood vessels resulting in vascular dysfunction. This, in turn, leads to severe wound healing disorders resulting in sepsis. We report the rare case of a 53-year-old patient with the simultaneous presence of Fournier's gangrene and calciphylaxis, placing a special focus on diagnostic and therapeutic aspects.