Primary Transitional Cell Carcinoma of Fallopian Tube Mimicking Radiologically as Extrauterine Leiomyoma: A Case Report

[Introduction]Primary carcinoma of the fallopian tube is very rare among primary genital tract malignancies. Transitional cell carcinoma is among the rarest tumor subtypes that can involve the fallopian tube.[Case Presentation]Here, we reported a 42-year-old premenopausal lady presenting with spotting, dysmenorrhea, and abdominal pain. She was found to have a pelvic mass in the right posterior cul-de-sac suspicious to be an eccentrically located leiomyoma. Histopathology examination of the resected mass revealed transitional cell carcinoma arising from the fallopian tube.[Conclusions]Primary fallopian tube tumors could be considered in differential diagnosis of pelvic mass and intraoperative frozen consultation is useful for correct diagnosis.