Aberrant pancreatic tissue is not rarely encountered in man but has seldom been reported in the lower animals. It has been described in a domestic cat, a cynomologus monkey and in dogs. Among the several thousands of rats he examined, Barron found only one instance of aberrant pancreatic tissue which was seen in the duodenal submucosa. The present report is the first description of aberrant pancreatic tissue in the liver of a rat.
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