[A Case of Pancreatic Adenocarcinoma with Inferior Vena Cava Invasion].
Gan to kagaku ryoho. Cancer & chemotherapy(2020)
Abstract
A 66-year-old Japanese woman was admitted to our hospital for jaundice. Abdominal computed tomography(CT) showed dilatation of the intra- and extra-hepatic bile duct, and a hypovascular lesion measuring 30mm in diameter in the head of the pancreas. This tumor was in contact with the(superior mesenteric vein: SMV)and(inferior vena cava: IVC), but there were no obvious signs of invasion. Upper gastrointestinal endoscopy showed obstruction of the duodenum. We chose to perform an upfront surgery, considering the patient's general condition being stable and the difficulties associated with endoscopic biliary drainage. During surgery, stiff attachment between the tumor and IVC was identified and wedge resection of the IVC wall was performed. SMV resection and end-to-end reconstruction were also carried out. Pathological studies of the surgical specimen revealed direct invasion by the pancreatic adenocarcinoma into the adventitia of the IVC. The postoperative course was uneventful, and the patient was discharged from the hospital on the 27th postoperative day; she underwent adjuvant chemotherapy(S-1 100mg/day)and is still alive without tumor recurrence, 21 months after surgery. Cases of resected pancreatic adenocarcinoma directly invading the IVC are rare. In this case, pancreaticoduodenectomy along with wedge resection of the IVC wall could safely be performed, and no complications were observed. There is a need for further accumulation of similar cases.
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Key words
pancreatic adenocarcinoma,inferior vena cava invasion
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