Sex cord / stromal ovarian tumors
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Sex cord / stromal ovarian tumours are a subtype of ovarian tumours and account for 8-10% of all ovarian tumours. They arise from two groups of cells in the ovary:
- stromal cells
- primitive sex cords: coelomic epithelium
The group of tumours includes
- ovarian fibroma-thecoma spectrum
- ovarian fibroma: ~4% of ovarian tumours
-
ovarian
fibrosarcomafibrothecoma: ~1% of ovarian tumours - ovarian thecoma: ~1% of ovarian tumours
- sclerosing stromal tumour of the ovary: rare 2
- ovarian Sertoli-Leydig cell tumour / ovarian chondroblastoma: ~0.5% of ovarian tumours
- granulosa cell tumour of ovary: most common malignant sex cord tumour
Radiographic features
Initial imaging modality to evaluate sex cord-stromal tumours is ultrasound. Large mass with heterogenous appearance is commonly seen 3.
These ovarian tumours tend to be unilateral, homogeneous, and tend to be solid (although may be cystic and solid). For individual appearances, see the subarticles.
-<a href="/articles/ovarian-fibrothecoma">ovarian fibrosarcoma</a>: ~1% of ovarian tumours</li>- +<a href="/articles/ovarian-fibrothecoma">ovarian fibrothecoma</a>: ~1% of ovarian tumours</li>
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