PMC5709288_01
Abdominal CT scan revealed an inflammatory thickening of the last ileal loop with, multiple fistulas and a collection of 3 cm. Moreover, at the mediorenal part of the right kidney, there was a well-defined and hypodense lesion measuring 2, 5* 3 cm.
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Biological tests showed inflammatory syndrome. (Fig. 1).
The entero-MRI revealed inflammatory ileal involvement of 8 cm with multiple fistula tracts without collection. There was also, a multicystic medio-renal mass with evident internal septations classified Bosniak 3.
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After 15 days of treatment, (Fig. 2).
Microscopic sections revealed a multilocular, multicystic tumor mass with cysts separated by fibrocollagenous connective tissue lined by a mixture of cells including flattened to cuboidal and clear cells. The clear cells had small hyperchromatic nuclei with Fuhrman's nuclear grading 1. Adjacent renal parenchyma was normal.
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Adjacent renal parenchyma was normal (Fig. 3).