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KMID : 0361019990420010102
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Korean Journal of Otolaryngology - Head and Neck Surgery
1999 Volume.42 No. 1 p.102 ~ p.105
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A Case of Teratoma of the Middle Ear
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김영기/Young Ki Kim
윤희완/윤용주/문우성*/Hee Wan Yoon/Yong Joo Yoon/Woo Sung Moon*
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Abstract
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Teratomas are true tumors derived from the three germinal layers (ectoderm, mesoderm, endoderm) which differentiate into identifiable tissues and organs. Embryologically, they are thought to result from the displacement of pluripotent cells from
normal
tissue during embryogenesis. Teratomas commonly occur in the sacrococcygeal region, gonads and mediastinum, but teratoma of the middle ear is exceedingly rare. Teratomas for teratomas of the middle ear should be early, complete surgical excision
to
prevent local destruction and although rare, malignant transformation. We present a case of middle ear teratoma with a review of the literature.
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