Psoas Abscess as a Complication of a Perinephric Abscess

Abstract

A 61-year-old woman with hypertension, hyperlipidemia, bilateral nephrolithiasis in 2008 status postbilateral lithotripsy, and left-sided pyelonephritis in 2020 complicated by subsequent Guillain-Barré syndrome managed with intravenous immunoglobulin (IVIG) presented to the emergency department with subacute progressive right-sided abdominal and flank pain. Her symptoms began 4 weeks prior to evaluation when she felt a sharp pain in her right hip and right lower quadrant, which was exacerbated by movement of her right lower extremity. She also endorsed cloudy urine.