title: The usefulness and limits of magnetic resonance imaging in the differential diagnosis of pelvic tumors.
abstract: Three cases of benign pelvic tumors are presented (2 leiomyomas and 1 fibroma). All three tumors were suspected of being malignant neoplasms because they were visualized as heterogeneous high signal intensity on T2-weighted images, and thus they were difficult to diagnose preoperatively. One of the leiomyomas was located in the retroperitoneum and had been misdiagnosed as an ovarian tumor. All three tumors exhibited secondary myxoid changes, these changes may have been responsible for the high signal intensity on the T2-weighted MR images. Since benign tumors sometimes mimic malignant tumors on MR images, exploratory laparotomy is essential to make a definitive diagnosis.
authors: Department of Obstetrics and Gynecology, Sumitomo Hospital, 5-3-20 Nakanoshima, Kita-ku, Osaka 530-0005, Japan. kojima-tetsuya@sumitomo-hp.or.jp
authors: T
authors: T
authors: Kojima
authors: O
authors: O
authors: Ishiko
authors: T
authors: T
authors: Ichimura
authors: S
authors: S
authors: Nishimura
authors: T
authors: T
authors: Sumi
authors: J
authors: J
authors: Ueda
authors: T
authors: T
authors: Tsujimura
authors: K
authors: K
authors: Shimura
mesh_terms: D005260:Female; D005350:Fibroma / Q000175:diagnosis*; D005682:Gadolinium; D006801:Humans; D007889:Leiomyoma / Q000175:diagnosis*; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D010386:Pelvic Neoplasms / Q000175:diagnosis*; D011237:Predictive Value of Tests; D014594:Uterine Neoplasms / Q000175:diagnosis / Q000473:pathology*
chemical_list: D005682:Gadolinium