Pleomorphic retroperitoneal liposarcoma with kidney infiltration mimicking renal trauma.

Pleomorphic retroperitoneal liposarcoma are uncommon malignant tumor which hard to treat condition for its local aggressiveness and clinical specificity. A 84 years-old male patient complained with an abdominal mass and left flank pain without hematuria. The patient also complained of shortness of breath due to left pleural effusion. Contrast CT Scan revealed left renal hematoma with suggestive of renal trauma. Left flank exploration and tumor excision was performed to the patient. Histopathological examination showed pleomorphic retroperitoneal liposarcoma. In seventh day post-operative, the condition was fully recovered. This is an unusual presentation retroperitoneal mass. Pleomorphic retroperitoneal liposarcoma can provide atypical imaging.