Fact-sheet: Theca cell tumor of ovary
Updated on 06/15/2020 at 11:16 AM
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Definition
Ovarian fibroma or theca cell tumor of ovary
- Rare benign tumor of stromal origin
- 1 to 5% of organic ovarian tumors
- Unilateral in 90% of cases
- Setting: peri- or postmenopausal
- 2 histopathological variants: fibromas and theca cell tumors, the latter distinguished by a lipid-rich content
Clinical features
- Solid mass, mobile, with a regular surface.
- If associated with ascites and right hydrothorax (1 to 10%): Demons-Meigs syndrome
- Lesion association
- Peutz-Jeghers syndrome: hamartomatous gastrointestinal polyposis + perioral mucocutaneous lentiginosis + ovarian fibroma
Ultrasound
Well-circumscribed hypoechoic mass,
posterior acoustic enhancement ++
MRI
T1 hypointense, T2 hypointense, poorly enhanced after injection (fibrous component +++)
