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    Basicranial teratoma
    (Springerlink, 1992) Karaca, Ceren; Evrenkaya, Tevfik Rıfkı; Erdoğan, Bülent; Aksoy, Firdevs; Pulat, H.; Aköz, Tayfun
    Teratomas are tumors formed by pluripotential primordial germ cells which constitute heterogeneous types of tissues foreign to the organ from which they originate. Rarely however, an extragonadal presentation occurs. Origin in the gonads is most common. An infant with an incomplete cleft palate, and a 20 x 10x 10 cm mass protruding from the mouth is presented. The lesion had a pedicle 20 cm in length, its base being attached to the hard palate. Soon after birth, surgical excision was performed. Histopathological examination revealed a teratoma containing mature elements from all 3 germinal layers without evidence of malignant change. The pathogenesis and the prognosis of this rare tumor are reviewed.