Abstract
Clinicohistopathologic and immunohistochemical studies of intrapancreatic development of duct cell carcinoma of the head of the pancreas to the body and tail were done in 34 cases in which total pancreatectomy accompanied by portal vein resection were performed from July 1981 to June 1987. In studies of hematoxylin and eosin (HE) staining, intrapancreatic development from the head to the body or tail was observed in 14 cases of 34 cases (41.1%). Multicentricity or skip development was observed in two of 14 cases. However, by using immunostaining of carcinoembryonic antigen (CEA), carbohydrate antigen 19-9 (CA19-9) and DUPAN2, small cancer nests surrounded by dense fibrous connective tissues could be easily and accurately diagnosed, and finally, in 25 of 34 cases (73.5%), intrapancreatic continuous development from the head to body or tail was observed. The intrapancreatic development correlated with portal invasion and perineural invasion of carcinoma, hardness of body and tail, obstruction of the main pancreatic duct, and irregular pancreaticogram. The intraoperative quick immunostaining on the cryostat sections, together with HE staining, is useful to determine the intrapancreatic development of the carcinoma. The indication of total pancreatectomy or pancreatoduodenectomy for carcinoma of the head of the pancreas can be determined by these results.
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