[Diagnosis of the infiltrating depth of gastric cancer by endoscopic ultrasonography].
In the diagnosis of the infiltrating depth of thirty four cases with gastric cancer, in which twenty two cases were early cancer and fourteen cases advanced cancer, the rate of the diagnostic accuracy by EUS was eighty eight % in the differentiation between early cancer and advanced cancer. While, in distinction of cancer spreading into the mucosa, the submucosa, the muscularis propria and over the subserosa, diagnostic accuracy was sixty four % in early cancer and seventy five % in advanced cancer. There were two reasons mainly in the wrong diagnosis of EUS. One was the existence of fibrosis in cases of the depressed type of early cancer and the other was the dissemination of the cancer cells extending into the deeper tissues, which could be detected only by histological examinations.
D005773:Gastroscopy / Q000379:methods; D006801:Humans; D013274:Stomach Neoplasms / Q000473:pathology*; D013997:Time Factors; D014463:Ultrasonography / Q000379:methods