Minute @entity788 presenting with XXXX of the main pancreatic duct.

@entity1 @entity788 @entity1124 @entity2652 @entity5 @entity14501 @entity189 @entity850 @entity420
We describe a case of minute @entity1124 featuring @entity850 of the main pancreatic duct ( @entity14501 ) and associated with histological findings of periductal @entity2652 and fibroblast proliferation. A 53-year-old Japanese @entity1 with preoperative radiological evidence of @entity14501 stricture and dilation of the distal @entity14501 , and suspected of having @entity788 , underwent successful resection. Neither radiological nor macroscopic examination directly disclosed any @entity5 , and a small focus of @entity189 (8 x 8 mm) was only revealed on microscopic examination. The @entity5 was a poorly differentiated, @entity420 that had invaded the intrapancreatic nerves and veins. Interestingly, the @entity14501 located at the edges of the @entity5 had not been destroyed by the @entity189 , but its wall had been thickened by elastic tissue and fibroblast proliferation, resulting in @entity850 . The peripheral pancreas exhibited @entity788 . To date, the detection of small @entity788 masses using imaging procedures remains difficult, and most @entity1 are diagnosed on the basis of pancreatic ductal changes. However, the published work on small @entity788 contains little information about the histological features of the affected @entity14501 . The present findings suggest that @entity14501 strictures are not always provoked by destruction or filling with @entity5 cells, and that they can be caused by periductal @entity2652 and fibroblast proliferation in a minute @entity189 . Such changes in the @entity14501 may therefore be of clinical importance in the detection of early stage @entity5 .
