A radiological study of early esophageal carcinoma with special reference to superficial flat lesions
Katayama, H.; Nakai, A.; Sakai, Y.; Matsuda, H.
Nippon Acta Radiologica 41(3): 194-201
In 13 [human] cases of superficial esophageal carcinoma, including 10 cases of early esophageal carcinoma, the radiographic findings were compared with the resected specimens. A retrospective study was subsequently carried out on the radiographic findings which corresponded to superficial esophageal carcinoma, especially superficial flat lesions. In radiographic findings of lesions with an sm degree of invasion, the esophageal mucosae appeared coarsely granular or nodular. The margin was irregularly outlined, with rigidity, poor distensibility and double contour of the esophageal wall also observed. Radiographic diagnosis of lesions with an sm degree of invasion was relatively easy, but was very difficult using fluoroscopy alone. In radiographic findings of lesions with an m degree of invasion, the esophageal mucosae appeared finely to coarsely granular, with irregular outlining, cessation and loss of the esophageal mucosal folds. Radiographic diagnosis of lesions with an m degree of invasion was difficult when using only the findings on the esophageal margin, except in widespread lesions with an mm degree of invasion. It was necessary to examine double contrast radiographs with various distensibilities in the RAO [right anterior oblique] and LAO [left anterior oblique].