Abstract
In order to reveal the feartures which differentiate rapidly and slow growing gastric cancers, 63 cases of gastric cancer except the scirrhous type retrospectively followed up for more than 1 year, were investigated (early cancer 33 cases, advanced cancer 30 cases). Clinical and histopathological studies provided the following information ; 1) Among the early gastric cancer, IIa type and IIc (ul+) type were considerd as slow growing gastric cancer (Table 1). Localized types of advanced gastric cancer (Borrmann 1, 2 type) were considerd as rapidly growing gastric cancers. They were initially found as lesions without ulceration (Table 3, 4). 2) 19 cases of retrospectively observed advanced gastric cancer were dissected (Borrmann 2 type: 10 cases, Borrmann 3 type : 9 cases), and histopathologically examined. The histopathological feature of rapidly growing gastric cancer were as follows ;(1) ulceration is not deep (Table 7). (2) fibrosis around cancer nest is not tight (Table 8). (3) the invasive mode of the cancer to deeper layer is continuous (Table 9).
