title: Ependymal rests and subcutaneous sacrococcygeal ependymoma.
abstract: A 2 cm subcutaneous ependymoma was resected from the natal cleft of a 4-yr-old girl. The coccyx was not removed and there has been no recurrence in 14 years. A study of the post-coccygeal region in 15 control infants revealed subcutaneous islands of ependyma, unconnected with the cauda equina, in 4/4 infants with post-anal dimples and in 6/11 infants with no external post-coccygeal anomaly.
mesh_terms: D002675:Child, Preschool; D003050:Coccyx / Q000002:abnormalities; D004805:Ependyma / Q000473:pathology*; D004806:Ependymoma / Q000473:pathology*; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D012445:Sacrococcygeal Region