[An unusual placental tumor].

Non-trophoblastic placental tumors are rare lesions, either primitive or metastatic, from fetal or maternal origin. We report a case of an intraplacental leiomyoma which was observed in a term stillborn fetus. On the one hand, this observation asks for the origin of this rare tumor, question which can find an answer by molecular cytogenetic and, on the other hand, it deals with obstetrical complications linked to uterine leiomyomas.