Isolated fallopian tube torsion associated with a paraovarian cyst.

Isolated fallopian tube torsion (IFTT) is a rare cause of acute abdominal pain. This article reports a case of isolated torsion of the right fallopian tube associated with a paraovarian cyst (POC) in a pre-menarchal 12-year-old girl. The patient presented with 18 hours of progressively worsening right iliac fossa pain and nausea. Laboratory tests showed mild leukocytosis. Ultrasound showed a cystic mass adjacent to a normal right ovary with a thickened tubular structure, while computed tomography confirmed a right POC with features suggestive of torsion. Laparoscopy revealed a markedly edematous fallopian tube twisted twice around its axis with areas of necrosis. The tube was detorsed and the POC was removed. Salpingectomy was declined by the family and the tube was preserved. The postoperative course was uncomplicated. This case highlights the importance of considering IFTT in young patients with acute abdominal pain and a POC.