Primary XXXX in Japan.

@entity1893 @entity12293 @entity5 @entity706
A pathological study was carried out on 124 cases of primary @entity1893 ( @entity1893 ) in Japan. Macroscopically the cases were divided into three groups; flat, polypoid, and ulcerative types. @entity706 were distinguished from advanced by the depth of infiltration. Histologically the commonest type was ML, immunoblastic (ML, ibl.). Most were high grade @entity5 , in terms of morphology. Lymph node involvement was found in 44 cases. Correlation between macroscopical appearance, histological diagnosis, stage and accompanying @entity12293 ( @entity12293 ) was studied. Three main prototypes of @entity1893 were noted: The first was macroscopically ulcerative type, histologically high grade @entity5 and lacked @entity12293 ; the second was mostly flat, ML, lymphoplasmacytic/lymphoplasmacytoid (ML, l-p.) or ML, ibl., associated with @entity12293 , and arose from neoplastic proliferation of the interfollicular lymphoid cell in @entity12293 (termed @entity1893 of interfollicular type); the third was mostly flat, ML, centroblastic (ML, cbl.) or lymphoblastic (ML, lbl.), associated with @entity12293 , and originated from neoplastic proliferation of the follicular center cell in @entity12293 ( @entity1893 of follicular type).
