BMJ Case Reports 2017; doi:10.1136/bcr-2016-218944

Giant renal oncocytoma with classic stellate scar

  1. Keith J Kowalczyk
  1. Department of Urology, MedStar Georgetown University Hospital, Washington, DC, USA
  1. Correspondence to Dr Rachael D Sussman, sussman.rachael{at}
  • Accepted 11 January 2017
  • Published 27 January 2017


A middle-aged man with poor access to medical care presented with shortness of breath and 3 years of abdominal distention. On physical examination, he was found to have a palpable mass in the left upper quadrant. He was found to have undiagnosed congestive heart failure with dilated cardiomyopathy, and a CT scan of the abdomen and pelvis revealed a left renal mass.

An MRI performed to further characterise the lesion demonstrated a large exophytic mass with a central scar and segmental enhancement originating from the lateral aspect of the left kidney with no evidence of renal vein or caval thrombus (figure 1). Owing to the possibility of renal malignancy, the patient underwent …

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