A Rare Ectopic Ovary Mimicking Colon Sigmoideum Mesenchymoma Presenting as an Intestinal Mesenchymoma

Abstract

Ectopic ovaries are a rare occurrence. A 33-year-old woman presented to our unit for evaluation of a 2-year history of sporadic abdominal pain that was becoming sharp and frequent. Computed tomography (CT) suggested a gastrointestinal tract mesenchymoma. An abdominal laparotomy was performed and the tumor was excised for pathologic evaluation. A rapid frozen section pathologic examination showed a solitary fibrous tumor (SFT). The final pathology report was an ectopic ovary with corpora lutea bleeding. Ectopic ovaries are benign and the present case is the first report involving an ectopic ovary mimicking a gastrointestinal stromal tumor (GIST). The patient recovered well after surgery. Maldevelopment of the genital tract can lead to ectopic ovaries and surgery is a good management choice. The present case provides a possible differential diagnosis for GISTs.

Ectopic ovary - an unexpected finding

“…Ectopic ovary is a rare gynaecologic abnormality, characterized to be located above the level of the common iliac vessels, with less than 50 cases reported in the literature since 1959 2,3 . The estimated prevalence of ectopic ovaries among gynaecologic admissions sets between 1:29 0000 to 1:93 0000 2,4 .…”

“…Ectopic ovaries can also have an acute presentation (eg. mimicking an appendicitis), or mimic intraperitoneal tumours 3,4 .…”

“…Given its low prevalence, there are not many published studies concerning ectopic ovary management; however, whenever treatment is required, surgery remains the gold-standard 3,4 . The best management option should be achieved by a multidisciplinary board 4 .…”