Is gastric carcinoma different between Japan and the United States?
Based on the findings of the current study, it would appear that the more favorable outcome noted for gastric carcinoma patients in Japan primarily is explained by the differences in tumor location, a greater frequency of early stage disease, and more accurate staging compared with gastric carcinoma patients in the U.S. Results of gastric carcinoma treatment comparable to those obtained in Japan can be obtained in Western centers.
After review of histology, grade, type of biopsy, and mammographic findings, the combined findings of high grade, mass by mammography, and microinvasion predict patients at higher risk for invasive carcinoma. Selective utilization of SLN biopsy in DCIS is recommended.