Distribution of histologic types among malignant ovarian germ cell tumors: United States Surveillance Epidemiology and End Results national cancer database (1262 tumors; 1973 to 2002)

Histologic type	Percent of all OGCTs	Incidence (per 100,000 woman-years)
Immature teratomas	35.6	0.120
Dysgerminomas	32.8	0.109
Yolk sac tumor (endodermal sinus tumor)	14.5	0.048
Mixed germ cell tumors	5.3	0.019
Embryonal	4.1	0.014
Mature teratomas with malignant degeneration	2.9	0.011
Teratocarcinoma	2.6	0.009
Choriocarcinoma	2.1	0.008
All malignant OGCTs	100	0.338

OGCTs: ovarian germ cell tumors.

Data from:

Graphic 72483 Version 8.0

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