A case of duodenal stenosis due to segmental chronic pancreatitis:"groove pancreatitis".

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The typical case of the special form of segmental pancreatitis, "groove pancreatitis" named by Becker (1973) was reported. A 37-year-old female was admitted to our hospital with a chief complaint of abdominal fullness. She had a long history of alcohol abuse, with recurrent episodes of alcoholic hepatitis. Serum pancreatic and hepatic enzymes were slightly elevated. US and CT examinations demonstrated a mass of the pancreatic head with cystic lesions (Figure 1 and 2). Hypotonic duodenography and duodenoscopy revealed a marked irregular stenosis of the descending part of the duodenum (Figure 3 and 4). Endoscopic retrograde cholangiopancreatography showed no abnormality of the main pancreatic duct (Figure 5). Celiac angiogram was normal. A pancreaticoduodenectomy was performed. Histological findings revealed a severe scarring in the "groove" between the head of the pancreas, the duodenum and the common bile duct. Furthermore, multiple cysts and ectopic pancreatic ducts in the submucosal layer and high-grade hypertrophy of the proper muscle layer of the duodenum were observed. Those findings were suggesting anomaly (Figure 9, 10, 11, 12).
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