[Sacrococcygeal teratoma in adults].

This report describes a case of sacrococcygeal teratoma, a rare pathology belonging to the group of presacral tumors. Its clinical presentation is very variable. In this case, the tumor presented as a pilonidal cyst, which is an atypical form. The teratoma was associated with a spinal malformation, described in 25% of all cases. It was treated by "en bloc" resection with sacrectomy.