title: [The accuracy and clinical issue of preoperative diagnosis of gastric cancer].
abstract: We discussed the accuracy and clinical issue of preoperative diagnosis for 764 patients with gastric cancer from 1987 to 1990. The accuracy of diagnosis, location, tumor size, wall invasion, involved lymph node were 81.8, 80.5, 62.2, 82.5% respectively. The clinicopathological characteristics of the regions which we missed preoperative diagnosis are infiltrating type and scirrhous type in diagnosis of tumor size, and large tumor in diagnosis of wall invasion. Especially in the case of early gastric cancer, we missed diagnosis of wall invasion of the regions with clinicopathological characteristics as follows: depressed type, undifferentiated type and ulceration in lesions. Now it is difficult to diagnosis wall invasion before surgery, so we have to be careful to determine the indication of endoscopic resection or limited operation for early gastric cancer, especially with clinicopathologic characteristics stated as above.
authors.affiliation: Division of Surgery, Cancer Institute Hospital.
authors.forename: S
authors.initials: S
authors.lastname: Ishihara
authors.forename: T
authors.initials: T
authors.lastname: Nakajima
authors.forename: K
authors.initials: K
authors.lastname: Ota
authors.forename: K
authors.initials: K
authors.lastname: Oyama
authors.forename: H
authors.initials: H
authors.lastname: Nakayama
authors.forename: M
authors.initials: M
authors.lastname: Nishi
mesh_terms: D003937:Diagnosis, Differential; D003952:Diagnostic Imaging / Q000379:methods; D005773:Gastroscopy; D006801:Humans; D008207:Lymphatic Metastasis; D009361:Neoplasm Invasiveness; D013274:Stomach Neoplasms / Q000175:diagnosis* / Q000473:pathology; D013276:Stomach Ulcer / Q000175:diagnosis