Uterus-like cyst in the ileal mesentery : a case report and review of the literature

Abstract EN

We describe a 15-day-old girl who presented with right lower abdominal mass, referred with a prenatal diagnosis of abdominal cyst.

Exploration revealed a cystic mass arising from the small bowel mesentery.

The mass was lined by endometrial-like tissue and had an outer layer of smooth muscle that resembled myometrium.

There are approximately 31 reported cases of “a uterus-like mass” but this is the first case diagnosed in neonatal period.

We believe that a congenital malformation, possibly caused by a defect in fusion of Müllerian ducts, could be considered in explaining the pathogenesis of this kind of lesion.