Chronic pancreatitis: reassessment with current CT.

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Abstract
A retrospective analysis was performed of contrast material-enhanced current-generation computed tomographic (CT) examinations in 56 patients with documented chronic pancreatitis. Dilatation of the main pancreatic duct was seen in 68% of cases, parenchymal atrophy in 54%, pancreatic calcifications in 50%, fluid collections in 30%, focal pancreatic enlargement in 30%, biliary ductal dilatation in 29%, and alterations in peripancreatic fat or fascia in 16 %. The relatively small proportion of examinations in which no abnormalities were observed, 7%, differs from that in early reports, as does the absence of generalized pancreatic enlargement. Pancreatic ductal dilatation and parenchymal atrophy were notably more prevalent than reported previously. Nine of the 17 patients with focal pancreatic enlargement had calculi within the mass, which suggested benign disease; of the eight other patients, two of whom had coexistent carcinoma, this finding was absent and the masses were considered indeterminate at CT.