Obstetrics and Gynecology - A.M. Gromova 2000

Benign Tumors of the Female Reproductive Organs
Benign Ovarian Tumors
Gonadoblastoma

Gonadoblastoma is a tumor composed of two main Cell types: large Germ Cells resembling those of dysgerminoma and seminoma, and smaller cells resembling Sertoli cells. In addition, the stroma may contain cells that resemble lutein and Leydig cells.

Gonadoblastomas occur almost exclusively in patients with dysgenetic Ovaries or streak Gonads, most of which are Chromatin-negative and harbor a Y chromosome. They have a high propensity for malignant transformation. Treatment is surgical.

Unclassified tumors

This group includes primary ovarian tumors that cannot be classified into any of the categories described above.

Secondary (metastatic) tumors are malignant tumors that are discussed in the relevant section.



Last update: 08/08/2026

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