Introduction and importance: Ovarian cystadenofibroma is a relatively rare benign tumor (Groutz et al., 1994) that develops from the ovarian epithelium and stroma. This tumor can be solid, cystic, or semi-solid, depending on the fraction of epithelium and stroma it contains and the secretory activity of the epithelium that composes it.
Case presentation: We report the case of a 58-year-old multiparous patient who consulted for pelvic pain and for whom an MRI was requested, objectifying the presence of a mass of ovarian origin. The patient had been menopausal since the age of 51 and was not taking hormone replacement therapy. She had comorbid hypertension for 4 years under treatment. Preoperative ultrasound showed an ovarian-appearing, finely echogenic mass, site of endocystic vegetation, measuring 8.48 mm × 7.30 mm long axis.
Clinical discussion: The mechanism underlying this hyperestrogenism is considered to be hypersecretion of the hormone by the tumor itself.
Conclusion: cystadenofibromas had morphologic imaging features of malignancy on CT or MR images. On histology, solid components in the cystic tumors were correlated with fibrous stromas that occasionally made a false positive result for malignancy on imaging.
Keywords: Benign tumor; Ovarian; Stadenofibroma.
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