• Danny Markabawi and Harvir Singh-Gambhir.
• SUNY Upstate Medical University, 750 East Adams St., Syracuse, NY 13210, United States. Electronic address: markabad@upstate.edu.
• Am J Emerg Med. 2018 Jul 1; 36 (7): 1325.e1-1325.e2.

AbstractAcute renal infarction is a relatively rare and scarcely reported condition. Contrast enhanced CT scan is essential for diagnosing this condition. The most common etiology of this condition is cardioembolic, however up to 59% of cases could be classified as idiopathic acute renal infarction. Here we present a case of a 41 year-old male who was admitted for acute onset right flank pain with fevers and rigors. A CT abdomen with contrast showed findings concerning for right pyelonephritis or renal infarction. Urinalysis was negative for infection. He did not respond to treatment with intravenous antibiotics and was thus diagnosed with acute renal infarction. Work-up for common etiologies was negative and the renal infarction was presumed to be idiopathic. He was discharged home on Enoxaparin. In conclusion, acute renal infarction is a rare condition which should be suspected in patients presenting with acute flank/abdominal pain in whom the more common etiologies have been ruled out.Copyright © 2018 Elsevier Inc. All rights reserved.

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