# Atypical hemolytic uremic syndrome: a rare complication of postendoscopic retrograde cholangiopancreatography pancreatitis

## TL;DR

A teenage girl developed a rare kidney disease after a common medical procedure used to treat bile duct issues.

## Contribution

This case report highlights atypical hemolytic uremic syndrome as a rare complication of post-ERCP pancreatitis in a pediatric patient.

## Key findings

- A 16-year-old female developed post-ERCP pancreatitis following ERCP for choledocholithiasis.
- The patient subsequently developed atypical hemolytic uremic syndrome, a rare pediatric complication.

## Abstract

Endoscopic retrograde cholangiopancreatography (ERCP) is a crucial procedure for diagnosing and managing conditions affecting the pancreas and biliary tract. The procedure can be technically challenging and carries risks of complications, with post‐ERCP pancreatitis (PEP) being the most common. We report a case of a 16‐year‐old female who presented with cholelithiasis that progressed to choledocholithiasis which was removed using ERCP. Following this, she developed PEP and subsequently progressed to atypical hemolytic uremic syndrome, a rare complication reported in the pediatric literature.