Abstract
A 53 year old male presented with right sided loin pain in the absence of other distinguishing symptoms, past medical history or examination findings. Investigation, a week later, revealed a right sided renal mass. He underwent laparascopic nephrectomy for presumed renal malignancy. Surprisingly, the mass was an area of infarction and the renal artery had intimal-type fibromuscular dysplasia (FMD). This case demonstrates three important points. Firstly, renal infarction is a cause of acute loin pain. Secondly, delayed investigation can alter the radiological appearance of renal infarction. Lastly, FMD is a rare condition, particularly in men, and can cause renal infarction.
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