Renal sinus lipomatosis: Different cases with computed tomography

Objective: In this study, computed tomography (CT) findings of the cases with different levels of fat storage in renal sinus tissue are represented and renal sinus lipomatosis is evaluated in the light of recent literature. Material and Methods: In our study, the CT archive was investigated retrospectively. Between 2010 May – 2011 September. Eleven different cases who have been sent to our CT unit from different clinics had been evaluated. Results: Five male, 6 female; totally 11 different patients had been diagnosed as renal sinus lipomatosis with CT findings. The ages of the patients differed between 36 and 80. In 7 of the patients who have been included to this study, had staghorn renal calculi. Two of them had non-spesific abdominal pain, 1 patient had acute pancreatitis and 1 patient had pyelonephritis. All of these patients had renal sinus lipomatosis. Conclusion: Renal sinus lipomatosis is a benign pathology and the diagnosis with conventional radiological methods may be difficult. It may be confused with urological tumors. CT helps us to diagnose correctly, determine the level of adipose tissue proliferation, extention to adjacent tissues and the complications. The patients can be diagnosed definitively with the study of urologists, radiologs and pathologs together.