Atypical hemolytic uremic syndrome with peripheral gangrene and homocysteinemia in a child.

Atypical hemolytic uremic syndrome (aHUS) is a rare, progressive, life-threating disease that frequently has a genetic component; it is usually caused by familial, sporadic or idiopathic reasons. We report a case of aHUS in a 21-month-old girl with coexisting of methylenetetrahydrofolate reductase mutations, homocysteinemia and thalassemia minor complicated by peripheral gangrene as extrarenal manifestation. [ABSTRACT FROM AUTHOR]