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The Echogenic Patterns of the Pancreatic Parenchyma in the Endoscopic Ultrasonography


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Title: The Echogenic Patterns of the Pancreatic Parenchyma in the Endoscopic Ultrasonography
Authors: Honda, Shoji / Fujioka, Toshio / Fujiyama, Kanzoh / Kubota, Toshihiro / Murakami, Kazunari / Terao, Hideo / Nasu, Masaru
Issue Date: 15-Dec-1994
Citation: Acta medica Nagasakiensia. 1994, 39(4), p.11-15
Abstract: Using the pancreas of the Japanese Macaque and human pancreas from autopsy cases, the echogenic patterns of the pancreatic parenchyma obtained by the ultrasonic endoscopy were compared with the histological findings. The parenchyma of the normal pancreas was observed as an echogenic pattern with homogeneous accumulation of small granular echoes. Such granular echoes are suggested to represent pancreatic acini on comparison with the tissue structure. This was confirmed by widening the pancreatic interstitium by infusing physiological saline into the main pancreatic duct. Such granular echoes became indistinct in the pancreas from autopsy cases due to autolysis. In the experimental pancreatic lesion produced by local injection of 1 % deoxycholic acid into the pancreas of Japanese Macaque, hemorrhage and fibrosis were noted 1 week later and fibrosis appears after 2 to 3 weeks. Hemorrhagic lesions were appeared as an area of high echogenicity, and fibrosis was appeared as an area of low echogenicity, with irregularity of the granular structure seen in the normal tissue.
URI: http://hdl.handle.net/10069/16004
ISSN: 00016055
Type: Departmental Bulletin Paper
Text Version: publisher
Appears in Collections:Volume 39, No. 4

Citable URI : http://hdl.handle.net/10069/16004

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