Purpose:

In abdominopelvic cross sectional imaging, a spectrum of pathologies other than gastrointestinal and urogenital system, can be seen through the pelvic sections. With this study we aimed to classify the incidental pelvic mass lesions which do not correspond with their prediagnoses.

Materials and Methods:

During study, 290 cases which have been reported as having pelvic pathology or masses on CT between May 2005- June 2007 were rewieved respectively. With the pathology reports of 23 cases and 2 years follow up results of the rest, the imaging protocols, rewieved.

Results:

Neoplastic mass lesion (n=71; 32 benign, 24 primary malignancy of the bone and soft tissues around the pelvic rim, 15 metastatic lesion), infectious-inflammatory mass (n=54), postoperative-posttravmatic changes (n=68), Paget disease (n=1), fibrous dysplasia (n=1), pelvic lipomatosis (n=1), bone island (n=29), Klipel-Trenaunay Syndrome (n=1), bone variation (n=59), pelvic kidney (n=5) were found. Totally, extraintestinal, extraurinary and extragenital masses were comprised %4.2 of the 6900 rutine abdominal sectional imaging.

Conclusion:

In pelvic region, with abdominopelvic CT imaging other than gastrointestinal, urinary and genital system a diversity of lesions can be seen. Familarity with these distinct entities will help determine the lesions’s extents and to diagnoses.

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