RECURRENT UROSEPSIS DUE TO NEPHROCOLIC FISTULA IN AN AUTOSOMAL DOMINANT POLYCYSTIC KIDNEY DISEASE Nephrocolic fistula is an abnormal communication between the kidney and the colon, a rare clinical phenomenon with potentially serious complications. We present a case of a 37-year-old female with autosomal dominant polycystic kidney disease who complained of left lumbar pain, fever and urinary frequency. She had multiple similar presentations for years, refractorily treated for recurrent urinary tract infections. Contrast-enhanced computed tomography abdomen demonstrated bilateral staghorn calculi and perinephric abscesses connected to the descending colon. She eventually required surgical intervention after the failure of medical therapy. Our case highlights the diagnosis and management of nephrocolic fistula.