[Chronic granulomatous villitis due to cytomegalovirus. An unusual finding that may cause confusion. A case report].

Chronic cytomegalovirus (CMV) villitis typically causes inflammation with predominance of plasma cells. The granulomatous reaction in the chorionic villi is usually caused by pathogens other than CMV, such as toxoplasma or rubella. We present a case of a pregnant woman presenting with foetal death in the twentieth week of gestation. The study of the placenta revealed chronic CMV villitis with a granulomatous reaction, rather than the more common plasma cell inflammation.