title: A biometrical study on esophageal invasion of carcinoma of the upper stomach. Part I: Determination of occurring point of the cancer and analysis of its horizontal extension.
abstract: In order to detect the occurring point of gastric cancer, and to determine its horizontal extension from this point, we performed a histological examination of 30 resected specimens of upper stomach cancer and 31 of middle and lower stomach cancers. The center of the horizontal extension (Oh) and that of the vertical extension (Ov) were calculated using a paper model. The mean distance between Ov and Oh (Ov-Oh D) was as little as 5.7 +/- 5.0 mm, and the ratio of Ov-Oh D to the size of the lesion was as low as 8.3 +/- 6.7%. There was a linear correlation between the oral and anal radii of the cancer. There was also a linear correlation between anterior and posterior radii of the cancer. In conclusion, either the Oh or the Ov can be considered as the occurring point, and the cancer grows concentrically around this point.
authors.affiliation: Second Department of Surgery, School of Medicine, Kumamoto University, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Baba
authors.forename: A
authors.initials: A
authors.lastname: Misumi
authors.forename: A
authors.initials: A
authors.lastname: Murakami
authors.forename: M
authors.initials: M
authors.lastname: Akagi
mesh_terms: D000230:Adenocarcinoma / Q000473:pathology*; D002288:Adenocarcinoma, Mucinous / Q000473:pathology; D000328:Adult; D000368:Aged; D001699:Biometry; D004938:Esophageal Neoplasms / Q000473:pathology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009361:Neoplasm Invasiveness / Q000473:pathology*; D013274:Stomach Neoplasms / Q000473:pathology*; D013997:Time Factors