A case report of mitotically active ovarian cellular fibroma with minor sex cord elements

Abstract

Introduction: Mitotically active cellular fibroma (MACF) with Minor Sex Cord Elements is a extremely rare disease. Although imaging helps in the diagnosis to some extent, the final and definitive diagnosis is based on evaluation and histological studies. The main differential diagnosis of this tumor is ovarian fibrosarcoma, which has moderate to severe atypia and a poorer prognosis. In this study, a case of mitotically active ovarian cellular fibroma with minor sex cord elements is reported. Case presentation: A 41-year-old woman referred to gynecologic clinic with abdominal pain and abnormal uterine bleeding in the form of spotting. Clinical findings had no signs for diagnosis. Serum Tumor markers including CA125 were within normal limit. Ultrasound and computed tomography (CT) were supportive of sex cord stromal tumors. After surgical procedures and pathologic evaluation, the patient was finally diagnosed as MACF with less than 10% sex cord elements. Conclusion: Differentiating mitotically active cellular fibroma from fibrosarcoma which may have similar histological findings is important to prevent overtreatment of patient with cellular fibroma.

Keywords

• fibroma
• fibrosarcoma
• ovary