Background: patients with clinically suspected retroperitoneal masses, (MDCT) is considered the reference standard for them, as it shows up the accurate diagnosis, location, extent of tumor, along with involvement of adjacent organs and vessels. It also has a high accuracy in differentiation of malignant from benign lesions, detection of lymph node involvement & metastasis. Therefore MDCT plays an important role in treatment planning and follow up of different retroperitoneal masses. MDCT have many Advantages over other imaging modalities: less invasive, more widely available, lower dose of radiation due to fast scanning, higher spatial & temporal resolution
Objective : assess the accuracy of multi-detector computed tomography (MDCT) in diagnosis of different retroperitoneal masses, by comparing the diagnosis reached by MDCT with the pathology of the studied retroperitoneal cases.
Methods: This study was carried out at Radio diagnosis Department, Zagazig University Hospitals, and other radiological centers. The present study was carried on 42 patients with retroperitoneal masses. Those patients were examined by MDCT.
Results: The MDCT images of 42 patients were analyzed for reaching final diagnosis. The results of MDCT were compared with the histopathological results. Positive results were obtained in 37 lesions out of total 42 cases, with estimated CT accuracy about 88.1% in diagnosis of different retroperitoneal masses.
Conclusion: MDCT should be used in the first place in the course of diagnostic and staging procedures of patients with different retroperitoneal tumors and tumor recurrence.