[Initial phase of Borrmann type-IV carcinoma of the stomach suggested from observations of early gastric carcinoma arising in breast cancer patients].

Borrmann Type-IV carcinomas were frequently found in advanced carcinoma of the stomach arising in breast cancer patients as a second malignancy. We assumed that some of the early gastric carcinomas in with breast cancer patients would develop into Borrmann Type-IV carcinoma. According to histopathological studies involving 10 cases, six were presumed to be initial lesions of Borrmann Type-IV carcinoma. All lesions in the six cases were macroscopically Type-IIc of early gastric cancer. A shallow ulcer scar, such as UL-1 or UL-II was mostly observed in IIc lesions.