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Abstract
Objective. Prospectively to evaluate patients with chronic asymptomatic pancreatic hyperenzymemia in order to identify possible pancreatic and non-pancreatic diseases. Material and methods. Seventy-five asymptomatic subjects with long-standing pancreatic hyperenzymemia (45 M, 30 F; mean age±SD 51.5±16.0 years, range 19–78 years, mean duration±SD of pancreatic hyperenzymemia 14.7±7.0 months, range 7–34 months) and normal ultrasonographic evaluation were included in this study. The subjects enrolled were carefully interviewed and prospectively evaluated. All patients underwent blood screening. An additional abdominal ultrasound was also carried out and, if considered necessary, other imaging and endoscopic evaluation procedures were used. Results. The follow-up of the patients after enrolment in the study was 3.3±1.8 years (mean±SD). In 38 patients (50.7%), pancreatic or extrapancreatic disease was diagnosed: 20 patients had chronic pancreatitis, 1 had autoimmune chronic pancreatitis, 1 had a benign cyst of the pancreas, 2 had serous cystadenomas, 5 had an intraductal papillary mucinous tumor of the pancreas, 3 had a ductal pancreatic adenocarcinoma, 4 patients had chronic viral hepatitis, and 2 had Crohn's disease. In 37 subjects (49.3%), no pancreatic or extrapancreatic diseases were found (3 subjects had macroamylasemia, 3 had familial hyperenzymemia, 31 had chronic non-pathological pancreatic hyperenzymemia). Conclusions. Subjects having an increase of either amylase or lipase serum levels should undergo a thorough diagnostic work-up prior to establishing the existence of chronic non-pathological pancreatic hyperenzymemia.