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Year : 2017  |  Volume : 34  |  Issue : 2  |  Page : 73-76

The role of multislice computed tomography in the differential diagnosis of retroperitoneal masses

1 Diagnostic Radiology Department, Faculty of Medicine, Benha University, Benha, Egypt
2 Radiology Department, Faculty of Medicine, Cairo University, Cairo, Egypt

Correspondence Address:
Ahmed F Mohammed
El Qanater El Khairia, El Qualiobia, 13621
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/bmfj.bmfj_100_17

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Background The great majority of retroperitoneal masses are found incidentally as a result of the use of computed tomography (CT), ultrasonography, and MRI. Therefore, the proper characterization of the masses is essential so that appropriate management is instituted. With modern CT imaging equipment, the diagnosis of most retroperitoneal masses is usually straightforward and accurate. Aim The aim of this study was to know the role of multidetector CT in the diagnosis and detection of retroperitoneal masses. Patients and methods The study was performed at National Cancer Institute, and approved by its ethical committee, and informed consent was given by all patients. The study was conducted on 32 patients (17 male and 15 female) presented to the National Cancer Institute with abdominal or pelvic swelling (on clinical examination or detected by previous imaging study) suspected to be of retroperitoneal origin to perform CT of the abdomen and pelvis for initial assessment or follow-up. Results At present, CT is the most reliable, effective, and efficient instrument in this context, offering sensitivity and specificity values in excess of 87%, with a diagnostic reliability of over 90% in application to retroperitoneal masses of a cystic or complex nature, with nonspecific or specific inflammatory characteristics, or of a primary or secondary neoplastic nature. Conclusion The differential diagnosis of retroperitoneal masses may be based on the predominant cross-sectional CT imaging appearance as either cystic or solid and neoplastic and non-neoplastic. Characteristic imaging findings, such as the composition (fat, calcification, and necrosis), enhancement pattern, vascularity, location, and relationship to adjacent structures, may be combined with clinical information and assisted by diagnostic scheme to help narrow the differential diagnosis.

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