1.Multilocular Cystic Renal Cell Carcinoma.
Myoung Jin JU ; Kee Tac JANG ; Je Geun CHI
Korean Journal of Pathology 1997;31(11):1240-1243
Multilocular cystic renal cell carcinoma is a distinct subtype of renal cell carcinoma with its pathological characteristics and good prognosis. Multilocular renal cysts and renal cell carcinoma with cystic change are important differential diagnoses. We report a case of multilocular cystic renal cell carcinoma in a 37-year-old woman who came to the hospital because of the right renal mass. The removed right kidney showed a 6x4 cm well defined cystic mass in the lower pole. On cut section there were multiple cavities in the mass, filled with serosanguineous fluid and focal yellowish solid area. Microscopically, these cysts were lined by a single layer of flat or cuboidal cells consisted of clear cytoplasm with small central nuclei. In some portions of the tumor, the clear neoplastic cells formed sheets within the septa or walls of the cysts.
Adult
;
Carcinoma, Renal Cell*
;
Cytoplasm
;
Diagnosis, Differential
;
Female
;
Humans
;
Kidney
;
Multicystic Dysplastic Kidney
;
Prognosis
2.Partial Pediculectomy for Spondylolisthesis with Radicular Pain Combined with Severe Osteoporosis.
Myoung Jin PARK ; Ho SHIN ; Ha Young CHO ; Seung Myoung LEE ; Seong Hun JEONG ; Jin Kyu SONG ; Suk Jung JANG
Journal of Korean Neurosurgical Society 2000;29(1):51-57
No abstract available.
Osteoporosis*
;
Spondylolisthesis*
3.Variability in Breast Density Estimation and Its Impact on Breast Cancer Risk Assessment
Hye JI ; Myoung-jin JANG ; Jung Min CHANG
Journal of Breast Cancer 2024;27(5):334-342
Breast density is an independent risk factor for breast cancer, although variability exists in measurements. This study sought to evaluate the agreement between radiologists and automated breast density assessment software and assess the impact of breast density measures on breast cancer risk estimates using the Breast Cancer Surveillance Consortium (BCSC) model (v.2). A retrospective database search identified women who had undergone mammography between December 2021 and June 2022. The Breast Imaging Reporting and Data System (BI-RADS) breast composition index assigned by a radiologist (R) was recorded and analyzed using three commercially available software programs (S1, S2, and S3). The agreement rate and Cohen’s kappa (κ) were used to evaluate inter-rater agreements concerning breast density measures. The 5-year risk of invasive breast cancer in women was calculated using the BCSC model (v.2) with breast density inputs from various density estimation methods. Absolute differences in risk between various density measurements were evaluated. Overall, 1,949 women (mean age, 53.2 years) were included. The inter-rater agreement between R, S1, and S2 was 75.0–75.6%, while that between S3 and the others was 60.2%–63.3%. Kappa was substantial between R, S1, and S2 (0.66–0.68), and moderate (0.49–0.50) between S3 and the others. S3 placed fewer women in mammographic density d (14.9%) than R, S1, and S2 (40.5%–44.0%). In BCSC risk assessment (v.2), S3 assessed fewer women with a high 5-year risk of invasive breast cancer than the other methods, resulting in an absolute difference of 0% between R, S1, and S2 in 75.0%–75.6% of cases, whereas the difference between S3 and the other methods occurs in 60.2%–63.3% of cases. Breast density assessment using various methods showed moderate-to-substantial agreement, potentially affecting risk assessments. Precise and consistent breast density measurements may lead to personalized and effective strategies for breast cancer prevention.
4.Variability in Breast Density Estimation and Its Impact on Breast Cancer Risk Assessment
Hye JI ; Myoung-jin JANG ; Jung Min CHANG
Journal of Breast Cancer 2024;27(5):334-342
Breast density is an independent risk factor for breast cancer, although variability exists in measurements. This study sought to evaluate the agreement between radiologists and automated breast density assessment software and assess the impact of breast density measures on breast cancer risk estimates using the Breast Cancer Surveillance Consortium (BCSC) model (v.2). A retrospective database search identified women who had undergone mammography between December 2021 and June 2022. The Breast Imaging Reporting and Data System (BI-RADS) breast composition index assigned by a radiologist (R) was recorded and analyzed using three commercially available software programs (S1, S2, and S3). The agreement rate and Cohen’s kappa (κ) were used to evaluate inter-rater agreements concerning breast density measures. The 5-year risk of invasive breast cancer in women was calculated using the BCSC model (v.2) with breast density inputs from various density estimation methods. Absolute differences in risk between various density measurements were evaluated. Overall, 1,949 women (mean age, 53.2 years) were included. The inter-rater agreement between R, S1, and S2 was 75.0–75.6%, while that between S3 and the others was 60.2%–63.3%. Kappa was substantial between R, S1, and S2 (0.66–0.68), and moderate (0.49–0.50) between S3 and the others. S3 placed fewer women in mammographic density d (14.9%) than R, S1, and S2 (40.5%–44.0%). In BCSC risk assessment (v.2), S3 assessed fewer women with a high 5-year risk of invasive breast cancer than the other methods, resulting in an absolute difference of 0% between R, S1, and S2 in 75.0%–75.6% of cases, whereas the difference between S3 and the other methods occurs in 60.2%–63.3% of cases. Breast density assessment using various methods showed moderate-to-substantial agreement, potentially affecting risk assessments. Precise and consistent breast density measurements may lead to personalized and effective strategies for breast cancer prevention.
5.Variability in Breast Density Estimation and Its Impact on Breast Cancer Risk Assessment
Hye JI ; Myoung-jin JANG ; Jung Min CHANG
Journal of Breast Cancer 2024;27(5):334-342
Breast density is an independent risk factor for breast cancer, although variability exists in measurements. This study sought to evaluate the agreement between radiologists and automated breast density assessment software and assess the impact of breast density measures on breast cancer risk estimates using the Breast Cancer Surveillance Consortium (BCSC) model (v.2). A retrospective database search identified women who had undergone mammography between December 2021 and June 2022. The Breast Imaging Reporting and Data System (BI-RADS) breast composition index assigned by a radiologist (R) was recorded and analyzed using three commercially available software programs (S1, S2, and S3). The agreement rate and Cohen’s kappa (κ) were used to evaluate inter-rater agreements concerning breast density measures. The 5-year risk of invasive breast cancer in women was calculated using the BCSC model (v.2) with breast density inputs from various density estimation methods. Absolute differences in risk between various density measurements were evaluated. Overall, 1,949 women (mean age, 53.2 years) were included. The inter-rater agreement between R, S1, and S2 was 75.0–75.6%, while that between S3 and the others was 60.2%–63.3%. Kappa was substantial between R, S1, and S2 (0.66–0.68), and moderate (0.49–0.50) between S3 and the others. S3 placed fewer women in mammographic density d (14.9%) than R, S1, and S2 (40.5%–44.0%). In BCSC risk assessment (v.2), S3 assessed fewer women with a high 5-year risk of invasive breast cancer than the other methods, resulting in an absolute difference of 0% between R, S1, and S2 in 75.0%–75.6% of cases, whereas the difference between S3 and the other methods occurs in 60.2%–63.3% of cases. Breast density assessment using various methods showed moderate-to-substantial agreement, potentially affecting risk assessments. Precise and consistent breast density measurements may lead to personalized and effective strategies for breast cancer prevention.
6.Changes of segmental left ventricular wall motion after coronary artery bypass graft surgery ; two-dimensional echocardiographic study.
Soo Yeon WON ; Il Mun JEON ; Myoung Seon PARK ; Myoung Kyu JANG ; Jae Kyu RYU ; Jin Won JEONG ; Yang Kyu PARK ; Ock Kyu PARK ; Jong Bum CHOI
Korean Journal of Medicine 1993;45(6):770-780
No abstract available.
Coronary Artery Bypass*
;
Coronary Vessels*
;
Echocardiography*
7.Body Fat Percentile Curves for Korean Children and Adolescents: A Data from the Korea National Health and Nutrition Examination Survey 2009-2010.
Kirang KIM ; Sung Ha YUN ; Myoung Jin JANG ; Kyung Won OH
Journal of Korean Medical Science 2013;28(3):443-449
A valid assessment of obesity in children and adolescents is important due to significant change in body composition during growth. This study aimed to develop percentile curves of body fat and fat free mass using the Lambda, Mu, and Sigma method, and to examine the relationship among body mass index (BMI), fat mass and fat free mass in Korean children and adolescents, using the Korea National Health and Nutrition Examination Survey (KNHANES) 2009-2010. The study subjects were 834 for boys and 745 for girls aged between 10 and 18 yr. Fat mass and fat free mass were measured by dual-energy x-ray absorptiometry. The patterns of development in body fat percentage, fat mass and fat free mass differed for boys and girls, showing a decreased fat mass with an increased fat free mass in boys but gradual increases with age in girls. The considerable proportion of boys and girls with relatively normal fat mass appeared to be misclassified to be at risk of overweight based on the BMI criteria. Therefore, the information on the percentiles of body fat and fat free mass with their patterns would be helpful to complement assessment of overweight and obesity based on BMI for Korean children and adolescents.
Absorptiometry, Photon
;
Adipose Tissue/*radiography
;
Adolescent
;
Age Factors
;
Asian Continental Ancestry Group
;
Body Composition
;
Body Mass Index
;
Body Weight
;
Child
;
Female
;
Humans
;
Male
;
*Nutrition Surveys
;
Obesity/diagnosis/radiography
;
Republic of Korea
;
Sex Factors
8.Effect of the Mixture of Thrombin Powder and Gelfoam Powder on Control of Exposed Cancellous Bone Bleeding.
Sung Wan PARK ; Ha Young CHO ; Seung Myoung LEE ; Seong Hun JEONG ; Jin Kyu SONG ; Suk Jung JANG ; Ho SHIN
Journal of Korean Neurosurgical Society 2000;29(5):664-667
No abstract available.
Gelatin Sponge, Absorbable*
;
Hemorrhage*
;
Thrombin*
9.A case of amniotic band syndrome.
Kee Myoung UM ; Hae Kyoung LEE ; Jang Yeon KWON ; Young Jin LEE ; Hyuck Dong HAN ; Dae Hyun KIM
Korean Journal of Obstetrics and Gynecology 1992;35(12):1839-1843
No abstract available.
Amniotic Band Syndrome*
;
Infant, Newborn
10.In Vitro α-Amylase, α-Glucosidase, Pancreatic Lipase, Xanthine Oxidase Inhibiting Activity of Agaricus bisporus Extracts
Jung Han KIM ; Myoung Jun JANG ; Youn Jin PARK
Mycobiology 2023;51(1):60-66
In this study, the α-amylase inhibitory activity, α-glucosidase inhibitory activity, pancreatic lipase inhibitory activity, and Xanthine Oxidase inhibitory activity of the fruiting body extracts of 5 varieties of Agaricus bisporus (AB) were confirmed. First, the α-amylase inhibitory activity of AB12, AB13, AB18, AB34, and AB40 methanol extracts was lower than that of acarbose, a positive control, in all concentration ranges. The α-glucosidase inhibitory activity of the AB40, AB13, and AB12 methanol extracts at the extract concentration of 1.0 mg/mL was 80.5%, 81.3%, and 78.5%, respectively, similar to that of acarbose, a positive control. The pancreatic lipase inhibitory activity of the methanol extract of Agaricus bisporus fruiting body was significantly lower than that of the positive control orlistat in the concentration range of 50 $ 1.000 (mg/mL). The Xanthine Oxidase inhibitory activity was 0.5 $ 8.0 mg/mL of each extract, which was significantly lower than that of the positive control allopurinol in the same concentration range. However, the Xanthine Oxidase inhibitory activity of AB13 and AB40 at 8.0 mg/mL was about 70%, which was higher than that of other mushrooms. In conclusion, five kinds of Agaricus bisporus fruiting bodies seem to have inhibitory effects on enzymes such as α-amylase, α-glucosidase, pancreatic lipase, and Xanthine Oxidase that degrade starch and protein. In particular, it has an inhibitory effect and a reduction effect on xanthine oxidase that causes gout, so it is expected that it can be developed and used as a food or health supplement with health functional properties through future research.