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Biopsy material of pancreatic tissue using light-optical radioautography and electron microscopy, and the method of high-precise radioautography also, was investigated to study up the pancreatic gland (PG) pathology in chronic pancreatitis (CHP). It was established that CHP is a chronic proliferative-destructive process causing focal generalized fibrosis of PG. All the structural components of organ, and the duct epithelium first of all, are affected in CHP. It gives reason to regard a duct system as a complex independent morphofunctional unit of PG.
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