Ovarian germ cell tumor classification

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Monalisa Dmello, M.B,B.S., M.D. [2]

Cellular Classification of Ovarian Germ Cell Tumors

The following histologic subtypes have been described.

• Dysgerminoma.

• Other germ cell tumors:
• Endodermal sinus tumor (rare subtypes are hepatoid and intestinal).
• Embryonal carcinoma.
• Polyembryoma.
• Choriocarcinoma.
• Teratoma:

• Immature.
• Mature:

• Solid.
• Cystic:

• Dermoid cyst (mature cystic teratoma).
• Dermoid cyst with malignant transformation.

• Monodermal and highly specialized:

• Struma ovarii.
• Carcinoid.
• Struma ovarii and carcinoid.
• Others (e.g., malignant neuroectodermal and ependymoma).

• Mixed forms.