Introduction and importance: Fibroma, thecoma, and fibrothecoma collectively denote a range of non -cancerous sex cord-stromal tumors distinguished by the presence of fibroblastic stromal cells and/or cells resembling luteinized theca cells. Case presentation: In this report, we present a case study of a 52 -year -old patient in whom this uncommon tumor was identified via MRI, highlighting the distinctive diagnostic and treatment considerations associated with it. Clinical discussion: Ovarian fibrothecoma tumors are infrequent, constituting less than 4 % of all ovarian tumors. Although they may manifest at any age, they are more commonly observed in elderly and post -menopausal individuals. Diagnosis hinges on clinical and paraclinical data, yet definitive confirmation is predominantly achieved through anatomopathological examination. For younger patients, conservative surgery is usually favored, whereas peri- or post -menopausal individuals may undergo radical treatment. Conclusion: Ovarian Fibrothecoma, though rare, are typically benign tumors frequently found in older patients. Diagnosis primarily relies on histological examination. Fortunately, the prognosis for these tumors is generally favorable.