Tamaki Imai

Gastric carcinoma with lymphoid stroma. Its morphologic characteristics and prognostic correlations

A type of gastric carcinoma was specified under the designation of carcinoma with lymphoid stroma. Grossly, this carcinoma was characterized by clear circumscription, usually with a central ulceration. A histologic feature distinguishing this carcinoma was the presence of a nondesmoplastic stroma infiltrated uniformly with an abundance of lymphocytes and plasma cells throughout the entire area of the tumor. Sparse population of less pleomorphic cancer cell nests of thin trabecular, microalveolar, or primitive tubular pattern widely separated by the intervening stroma was another feature peculiar to this tumor. Carcinoma of this type was found in 4% of a total of 1041 cases of gastric carcinoma removed surgically. A high survival rate was noted among the patients undergoing surgery for this carcinoma. A proposal was made on the separate classification of this tumor from common gastric carcinomas.

Coronary atherosclerosis and myocardial infarction in Kyushu, Japan, and Boston, Massachusetts.

Abstract Necropsy examinations of 352 consecutive autopsies in Kyushu and 350 similar autopsies in Boston disclose a considerable difference in the severity of coronary atherosclerosis in Japan and in the United States. As shown by quantitative appraisal, the onset of intimal disease occurs approximately two age decades later in Japan and progresses thereafter at a much slower rate. Similarly, myocardial infarction was found to be seven times more frequent in the U.S. series.

Inoculation of Chicken Sarcoma Virus into Chicken Thymus. An Electron Microscopy

Summary Intra-thymic inoculation of virus suspension is introduced as a method for electron microscopic study of chicken sarcoma of Chiba strain. In the tumor produced in the thymus, a significantly larger number of virus particles attached to the tumor cell was observed than in those produced at other sites. The virus particles were detected chiefly on the cell surface, in cytoplasmic vacuoles and in peculiar intracellular spaces.

ULCER OF THE UTERINE CERVIX IN THE JAPANESE FEMALE WITH REFERENCE TO THE HIGH MORTALITY FROM CERVICAL CANCER

Sixty‐three uteri, extirpated for lesions other than uterine cancer, from Japanese females whose clinical records contained no histories of preoperative biopsy, and 66 uteri obtained from autopsies of Japanese females who died of various causes other than uterine diseases, were examined histologically.