Authors analyzed sonographic findings of 59 cases of hepatic hemangioma, with had been diagnosed through examination in our Medical. dept, from Januray, 1985 to December 1989. The results of the analysis are as follows: 1) The hepatic hemangioma was found in 59 cases(0.33%) among the 17,714 insureds. 2) In all 59 cases who have hemangioma, hemangioma was found in 37 cases(0.35%) among the 10,724 insureds of male, and in 22 cases(0.31%) among the 6,990 insureds of female. 3) The possessing rate of hemangioma in male was increased by age regardless of sex-5/2,120 cases(0.24%) in $21{\sim}30$ years, 25/8,122 cases(0.31%) in $31{\sim}40$ years, 16/4,997 cases(0.32%) in $41{\sim}50$ years, 8/1,775 cases(0.45%) in $51{\sim}60$ years, and 5/359 cases(1.39%) in over 61 years. 4) The tumor involved right lobe of the liver in majority(71.4%) 5) The size of tumor was 10 lesions in under 10 mm, 58 lesions in $31{\sim}50$ mm, and 6 lesions in over 51 mm. The smallest tumor was 8 mm in diameter and the largest was 72 mm in diameter and 78 lesion(92.8%) were less than 50 mm in size. 6) Posterior acoustic enhancement was noted in 4 lesions among 68 lesions of less than 30 mm in long diameter, and in 4 lesions among 16 lesions more than 30 mm in long diameter. 7) Echographically most of the lesions presented as a round or oval high homogeneous echogenic mass, although a few mass appeared to be hypoechoic or Mixed echogenic. Finally a small round echogenic, sharply-marginated and internally homogeneous lesion is highly suggestive of hemangioma. If the hypoechoic lesion has homogeneous internal echoes and/or strong marginal echoes, it is also suggestive of hemangioma.

We'd performed the upper gastrointestinal study for a total of 10,047 insureds-male 5,919 female 4,128 persons-who were examined at medical department of Dae Han Kyoyuk Insurance Co., from August, 1986 to December, 1989. The results on duodenal ulcer were as follows; 1) Duodenal ulcer was found in 138 cases(1.37%) among the 10,047 insureds. 2) In all 138 cases who have duodenal ulcer, duodenal ulcer was found in 112 cases(1.89%) among the 5,919 insureds of male and in 26 cases(0.63%) among the 4,128 insureds of female. The incidence of duodenal ulcer in male was higher than in female. 3) The possessing rate of duodenal ulcer is 1.28% in 20 yrs, 1.24% in 30 yrs, 1.72% in 40 yrs, 1.21% in 50 yrs, 0.48% in 60 yrs. 4) The possessing rate of duodenal ulcer in male is 2.24% in 20 yrs, 1.78% in 30 yrs, 1.99% in 40 yrs, 2.05% in 50 yrs, 0.91% in 60 yrs and in female, 0.52% in 20 yrs, 0.48% in 30 yrs, 1.20% in 40 yrs, 0.2% in 50 yrs. 5) Coexistent lesion with duodenal ulcer were found in 19 cases; one case of esophageal diverticulum, one case of gastric diverticulum, one case of duodenal diverticulum, tow cases of gastric ulcer, six cases of gastritis, five cases of duodenitis, two cases of gastroduodenitis, one case of pseudodiverticulum.