MRI Diagnosis and Evaluation for Female Pelvic Neoplasms

Objective To analyze and summarize the MRI features of female pelvic masses, to evaluate Gd DTPA administration in diagnosing pelvic tumors.Materials and Methods MRI findings of female pelvic masses in 65 patients, aged 18 days～85 years with a mean of 51 years, were retrospectively analyzed.Results Of 65 pelvic tumors, 56 were originated from genital system.Conclusion (1) Most female pelvic masses are originated from genital system. (2) Enhancement can occur in both benign and malignant pelvic tumors, which are of non specific. Thus, determination of the pathology can not be relied on tumor enhancement. (3) Tumors, such as teratoma, endometriosis, uterine leiomyoma, ovarian cyst, cystadenoma, etc. have some characteristic signals on MRI, with which 100% diagnostic accuracy may be obtained. (4) Some so called malignant features of tumors, such as necrosis, ascites and cystic wall nodules, can also be found in benign tumors. (5) It is difficult to distinguish metastatic tumors from primary ones.