Serous cystadenoma with massive ovarian edema. A case report and review of the literature.

Background: Massive ovarian edema is an usual tumour-like condition. It may be confused with an ovarian neoplasm. Case: A 13-year-old female in premenarchy was referred as emergency case to a local hospital due to acute, severe and persistent hypogastric pain. She had noticed a gradual abdominal enlargement, mainly on the right abdomen during the last months. Ultrasound revealed a mass of a non-echogenic cystic compartment of 13 cm maximum diameter, and an area of mixed echogenicity of 11 cm maximum diameter at the anatomic site of the right ovary. The CA- 125 levels were increased. An unilateral salpingo-oophorectomy was performed. The pathology examination revealed serous cystadenoma with massive ovarian edema. Conclusions: Conservative treatment and ovarian suspension may be more appropriate, when histology on frozen section suggests a benign lesion.