Magnified Observation of Esophageal Mucosa.

概要

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Magnified observation of esophageal mucosa was studied to compare with the his-tological findings. The minute blood vessels recognized by 200 times magnification of resected specimens proved to be capillary vessels rising from vaso-network in lamina propria mucosae into the epithelial papilla by investigating the serial sections. The capillary vessels in the epitherial papilla were classified into 4 types as follows : type 1; fine and straight, type 2 ; spiral, type 3 ; irregularly tortous, and type 4 ; complicated. The type 1 and 2 tended to be normalmucosa, and type 4 was more likely cancer. The (+) group with visible vessels in the deeper layer was observed as normal or as having lamina propria mucosae cancer, but the (-) group with invisible vessels showed various findings from normal to submucosal cancer. Through magnified observation iodin un-staining lesions were classified into type A : clear papilla-pattern, type B : fusedpapilla-pattern, and type C : no papilla-pattern. Atypia were rarely observed for the type A, but these were often observed for the type B, and type C were mostly cancers. Magnified endoscopy of blood vessel patterns and iodin un-staining lesion patterns showed the same results. Thus, it is suggested that this classification made by magnified observation is clinically useful.
社団法人日本消化器内視鏡学会の論文