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Histologic infiltrating pattern of gastric microcarcinoma by means of serial sections
Author(s) -
Sakuma Akira,
Ouchi Akio,
Sugawara Tohoru,
Sato Toshio
Publication year - 1985
Publication title -
cancer
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.052
H-Index - 304
eISSN - 1097-0142
pISSN - 0008-543X
DOI - 10.1002/1097-0142(19850301)55:5<1087::aid-cncr2820550525>3.0.co;2-g
Subject(s) - submucosa , muscularis mucosae , medicine , pathology , carcinoma , anatomy
Two hundred eighty serial histologic sections, 5 μm thick, were made of a very small gastric carcinoma with submucosal invasion in order to assess the initial infiltrating pattern into the submucosa, as well as the growth therefrom. The small carcinoma infiltrated into the submucosa through four independent small channels, 0.02 to 0.05 mm 2 in size, despite its small spread (3 mm in diameter) on the mucosal layer. Each small channel always was accompanied by the small blood vessels penetrating the lamina muscularis. The size of carcinoma in submucosa grew further to reach 3 to 10 times small infiltrating sites of lamina muscularis mucosa. The growth pattern of the carcinoma in the submucosa, therefore, seemed to be an “expanded balloon.” Moreover, a small but distinct vascular invasion could be demonstrated within the balloon, suggesting a possible vascular metastasis.