sex cord - stromal ovarian tumours

Sex cord / stromal ovarian tumors are a subtype of ovarian tumors and account for 8-10% of all ovarian tumors. They arise from two groups of cells in the ovary:

• stromal cells
• primitive sex cords: celomic epithelium

The group of tumors includes

• ovarian fibroma-thecoma spectrum
  • ovarian fibroma: ~4% of ovarian tumors
  • ovarian fibrosarcoma: ~1% of ovarian tumors
  • ovarian thecoma: ~1% of ovarian tumors
  • sclerosing stromal tumor of the ovary: rare
• ovarian Sertoli-Leydig cell tumor / ovarian chondroblastoma: ~0.5% of ovarian tumors
• granulosa cell tumor of ovary: most common malignant sex cord tumor
  • juvenile granulosa cell tumor of the ovary
  • adult granulosa cell tumor of the ovary

Radiographic features

Initial imaging modality to evaluate sex cord-stromal tumors is ultrasound. Large mass with heterogenous appearance is commonly seen .

These ovarian tumors tend to be unilateral, homogeneous, and tend to be solid (although may be cystic and solid). For individual appearances, see the subarticles.

Siehe auch:

• Neoplasien des Ovars
• adulter Granulosazelltumor des Ovars
• ovarian thecoma
• Fibrom des Ovars
• ovarian fibrothecoma
• Sertoli-Leydig-Zell-Tumor des Ovars
• sclerosing stromal tumour of the ovary
• Granulosazelltumor des Ovars
• juveniler Granulosazelltumor des Ovars
• ovarian androblastoma