[Cephalopagus conjoined twins: case report and review of literature].

Cephalopagus are a rare variant of conjoined twins resulting from an incomplete late division of the embryonic disk and associated with an extremely poor fetal prognosis. Here, we report a rare case of a male cepahalopagus conjoined twins diagnosed during the 23rd week of gestation. Delivery was vaginal showing twins fused from the top of the head to the umbilicus. The fused skull showed a cephalocele with agenetic brain. Esophagus, stomach and duodenum are common for the two twins. Causes, diagnosis and management of cephalopagus are discussed referring to literature.