@article{oai:niigata-u.repo.nii.ac.jp:00020338, author = {阿部, 実}, issue = {2}, journal = {新潟医学会雑誌, 新潟医学会雑誌}, month = {Feb}, note = {There are two theories on the second layer of endoscopic ultrasonography (EUS) which histologically consists of muscle layer alone, or the muscle layer and the subserosal fibrous tissue. In order to resolve the problem mentioned above, endoscopic ultrasonographic findings were compared exactly with histological findings in this study. Concretely, two needles were stabbed into the resected gallbladder fixed 10% formalin, from mucosal side perpendicularly to the gallbladder wall. Endoscopic ultrasonogram represented two needles at one time was compared with a histologic section containing two needle marks. As the result, the second layer in EUS was composed of not only the muscle layer, but also the subserosal fibrous tissue. The boundary between the second layer and the third layer in EUS almost corresponded to that between the fibrous tissue and the fat tissue in the subserosa. From these data, it is concluded that the first layer in EUS is more reliable for the early detection of gallbladder cancer than the second layer.}, pages = {133--139}, title = {超音波内視鏡による胆嚢壁構造の基礎的検討}, volume = {107}, year = {1993} }