Ovarian Fibromatosis and Massive Edema

**Semantic type:** Disease or Syndrome

**Definition:** A rare benign lesion characterized by tumor-like enlargement of the ovaries due to fibroblastic proliferation with collagen deposition (fibromatosis) or stromal accumulation of edema fluid (massive edema). It presents in premenopausal patients, with menstrual abnormalities, abdominal pain, or androgenic manifestations. Most cases are unilateral. (WHO 2020)