Childhood teratomas in Ibadan, Nigeria.

摘要: Childhood teratomas are uncommon neoplasms worldwide. They nonetheless important because their exact histogenesis has not yet been resolved. The weight of the evidence points to a germ cell origin for these neoplasms. Eighteen percent 407 reviewed in Department Pathology, University College Hospital, Ibadan, Nigeria, between 1960 and 1985 occurred children up 15 years age. There was bimodal peak age incidence among children, first being due sacrococcygeal second ovarian teratomas. female male ratio 5:1. two most common sites occurrence were region ovaries. Eighty-one all childhood mature, 15% immature, 4% malignant. Both malignant arose patients relatively older than those with benign These contained yolk sac elements.