[Autoimmune hemolytic anemia and CREST syndrome]

There are few studies addressing the frequency and etiology of anemia in progressive systemic sclerosis. Anemia is present in about 25% of these patients. Among the implicated causes are ferropenia, generally associated with gastrointestinal hemorrhage, and renal failure. In a considerable number of patients, the specific etiology of anemia remained unknown. We report a 59-year-old female with autoimmune hemolytic anemia and incomplete CREST syndrome. We emphasize the rarity of autoimmune hemolysis as a cause of anemia in systemic sclerosis, and we discuss its significance as indirectly supporting the possible autoimmune pathogenesis of that condition.