2009 Volume 24 Issue 2 Pages 155-163
This case involved a 78-year-old female who visited our hospital with the chief complaints of obstructive jaundice and vomiting due to duodenal stenosis. Abdominal contrast CT revealed a low attenuation band between the duodenum and head of the pancreas; a mass lesion 10mm in diameter was found inside the pancreas in contact with the duodenum. An EUS scan from the duodenal bulb revealed a hypoechoic mass at the pancreatic margins in contact with the duodenum; continuous with this was an ill-defined hypoechoic mass expanding irregularly into the groove region and duodenal wall. In addition, adenocarcinoma was detected by endoscopic biopsy at the site of the duodenal stenosis. Thus, the patient was diagnosed as pancreatic carcinoma invading the groove region, and subtotal stomach-preserving pancreaticoduodenectomy was performed. Histopathologically, the carcinoma was pancreatic carcinoma (T3N0M0 pStageIII) 25×20mm in size that originated in the pancreatic region in contact with the duodenum and that had infiltrative growth into the groove region and duodenum. Because little is known about the EUS findings of groove pancreatic carcinoma, this case has been reported herein.
