Isolated renal involvement of cytomegalovirus inclusion disease in an infant.

Cytomegalovirus (CMV) is the most common cause of congenital infections in humans occurring in 1% of all liveborns. Symptomatic congenital CMV infection involves multiple systems and causes significant morbidity and mortality in newborns. Isolated CMV infection of the kidneys in a living infant has not been reported in literature. Here, we report an infant who presented only with renomegaly and renal biopsy showed extensive CMV inclusions. Serum and urine polymerase chain reaction for CMV were positive, and CMV involvement of other organs was ruled out. The child for treated with intravenous ganciclovir and is currently on follow-up. Cytomegalic inclusion disease involving only kidneys without other systems involvement can occur. The treatment protocol is unclear and long-term follow-up is needed.