Lemmel syndrome
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Lemmel syndrome is defined as obstructive jaundice caused by a periampullary duodenal diverticulum compressing the intrapancreatic common bile duct with resultant bile duct dilatation.
Clinical presentation
Patients may present with recurrent episodes of jaundice, pancreatitis and/or cholangitis.
Pathology
Duodenal diverticulum of the second part of duodenum compressing the intrapancreatic part of the common bile duct (CBD) with resultant upstream dilatation of the extra- and intrahepatic bile ducts.
Radiographic features
CT
Focal outpouching of the duodenum adjacent to the papilla (usually 2 part of the duodenum) causing compression of the CBD.
MRI
MRCP
Focal outpouching of the duodenum adjacent to the papilla (usually 2 part of the duodenum) causing compression of the CBD.
History and etymology
It was initially described by the German physician, Gerhard Lemmel (1902-1987) in 1934 .
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