Malignant carcinoid within a recurrent sacrococcygeal teratoma in childhood

Sacrococcygeal teratomas are uncommon tumors of childhood carrying a good prognosis if histologically benign and completely excised, especially if the coccyx is also excised. Carcinoids are also rare in children and only rarely associated with teratomas. We report the findings in a girl who had a malignant carcinoid within a recurrent malignant sacrococcygeal teratoma following its incomplete excision in the neonatal period. We believe that this is the first such case occurring in childhood.