Isolated Fallopian Tube Torsion: Diagnosis and Management of a Gynecologic Emergency.

Isolated fallopian tube torsion (IFTT) is a rare gynecologic emergency that requires a high index of suspicion and immediate surgical intervention. IFTT is rarely diagnosed preoperatively due to the lack of pathognomonic signs and symptoms. A 15-year-old female with no medical history presented with acute lower abdominal pain, nausea, and a physical exam significant for diffuse abdominal tenderness to palpation. Ultrasound revealed a large cystic adnexal mass with patent vascular flow to the ipsilateral ovary. Vital signs were stable and laboratory evaluation was unremarkable. Due to an uncertain diagnosis and suspicion of incomplete ovarian torsion, a laparoscopy was performed, which revealed an IFTT and ipsilateral hemorrhagic ovarian cyst. Treatment consisted of unilateral salpingectomy with cystectomy. IFTT is a surgical emergency with nonspecific signs and symptoms. A high degree of clinical suspicion is needed for prompt management. Diagnostic laparoscopy can be a useful tool in the setting of an uncertain diagnosis.