Occurrence of HUS in 13 months old infant infected with chicken pox

Hemolytic uremic syndrome(HUS) is one of common cause of acute renal failure in children.HUS has variety of causes such as infections , genetic disorders , systemic diseases and drugs but occurrence of HUS after chicken pox is very rare.Our case is a13 months old boy that affected chickenpox. Diagnosis of chickenpox was clinically based on characteristic rash and distribution of lesions. One week after being infected, when skin rash and vesicles started to heal, he got into oliguria and edema .further evaluation showed microangiopathic hemolytic anemia, thrombocytopenia and rise in BUNand Cr.Patient with diagnosis of HUS got supportive care and renal function gradually improved during one week without any sequel in last 6 month follow up.