Síndrome de Lemmel: una causa infrecuente de colangitis aguda

Lemmel syndrome is a rare entity that causes biliary obstruction due to compression of the common bile duct by periampullary diverticulum. It can manifest as acute cholangitis and often underdiagnosed. However, once identified, it be successfully treated with endoscopic retrograde cholangiopancreatography, being one most used methods. should considered in elderly patients diagnosis duodenal diverticulum, presence choledocholithiasis pancreatobiliary neoplasms have been ruled out.