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SpecialtyOncology, gynecology

Polyembryoma is a rare, very aggressive form of germ cell tumor usually found in the ovaries. Polyembryoma has features of both yolk sac tumour and undifferentiated teratoma/embryonal carcinoma, with a characteristic finding of embryoid bodies lying in a loose mesenchymal stroma.

It has been found in association with Klinefelter syndrome.[1]


  1. ^ Beresford L, Fernandez CV, Cummings E, Sanderson S, Ming-Yu W, Giacomantonio M (2003). "Mediastinal polyembryoma associated with Klinefelter syndrome". J. Pediatr. Hematol. Oncol. 25 (4): 321–3. doi:10.1097/00043426-200304000-00011. PMID 12679648.

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