For studies on the incidence of cancers of the digestive system in the Chungnam area, the operation and biopsy specimens were collected at the Department of Pathology, Chungnam National University School of Medicine from January, 1973 to December, 1976 and analyzed the incidence of the organ, sex, and age groups in each year.
The results were as follows:
1. The total numbers of malignant tumor for 4 years were 345 cases, and which were 53 cases in 1973, 76 _cases in 1974, 99cases in 1975, and 117 cases in 1976. The increasing rate was 43. 4%, and 120. 8% in progressing year, and the increasing rate compared with previous year showed 43. 4%, 30. 3%, and 18.2%, respectively.
2. The highest incidence of the organ in the digestive system was the stomach, and showed 181 cases (52. 5%), the next, the large intestinevand anus, 77 cases (22.3%), the peritoneum, 39 cases (11. 3%), and the oro-pharynx, 15 cases (4. 3%), respectively.
3. The highest incidence of the age group was 50th age group, and showed 121 cases (35.1%), the next, 40th, 107 cases (31. 0%), respectively.
4. The ratio between the male and the female was 1. 76 to 1, and the numbers showed that the total male cases were 220(63. 8%), and the female 125 cases(36. 2%).
5. The mast fregient pathological lesion in the uterine cervix was simple inflammation, and was 72. 1% (199 cases), and the neoplasm was invasive sgaamous cell carcinoma, 9. 4% (26 cases). The most frequent lesion in the uterus was adenomyosis, and was 34. 3% (98 cases), and the neoplasm was leiomyoma, 22. 7% (65 cases).
The most frequent lesion in the salpinx and ovary was simple salpingitis, and was 48. 5% (117 cases), and the most frequent tumor was cystadenoma, 5. 0% (12 cases).
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