1.Simple Unilateral Ectopic Kidney.
Kyu Hwan KIM ; Hyun Tae LEE ; Hyo Ki KIM
Korean Journal of Urology 1968;9(2):93-97
Two cases of ectopic kidney were reported in conjunction with review of literatures. The ectopic kidneys, measuring 13 cm-,15 cm in length of their ureter, were located between the L3 .and S1. Operative removal of the ectopic kidney disclosed aberrant arteries in their both pole. histological examination revealed normal findings.
Arteries
;
Kidney*
;
Ureter
2.A clinical analysis of breast cancer.
Seong Hwan HWANG ; Jin Yong LEE ; Sang Hyo KIM
Journal of the Korean Surgical Society 1992;42(6):776-786
No abstract available.
Breast Neoplasms*
;
Breast*
3.A Study for Germline Mutation of BRCA1 in Early Onset Breast Cancer Patients.
Hyo Joon KIM ; Ji Yeon LEE ; Eun Sook LEE ; Bum Hwan KOO
Korean Journal of Immunology 1997;19(4):601-608
The cumulative incidence of breast cancer in Korea is low, being about one-fifth of that in the United States. This low incidence has been mainly explained by environmental factors, and recently, however, racial variations in the disease-causing genes should also be considered. The BRCA1 is one of the common genes involved in early-onset breast cancer and/or ovarian cancer in the United States and Northern Europe. However, the involvement of BRCA1 in Korean'breast cancer patients are still unclear. We performed germline mutation screening of the BRCA1 gene by DNA single strand conformation polymorphism (SSCP) analysis. We examined 27 breast cancer patients who were diagnosed less than 35 years by age including two cases with family history of breast cancer. Our study showed no germline mutation at the exons 2, 11 and 20, which were known as the supreme susceptible regions of BRCA1 mutations. Even though our cases did not fulfilled the criteria of familial breast/ovarian cancer, the proprotion of families who inherit the mutated BRCA1 allele seems to be very small and might be negligible among Korean population. Therefore, it is considered that the BRCA1 itself cannot be a major susceptibility gene and the contributions of other genes might be important for the breast cancer.
Alleles
;
Breast Neoplasms*
;
Breast*
;
DNA
;
Europe
;
Exons
;
Genes, BRCA1
;
Germ-Line Mutation*
;
Humans
;
Incidence
;
Korea
;
Mass Screening
;
Ovarian Neoplasms
;
United States
4.Case report of solitary giant hepatic lymphangioma.
Korean Journal of Hepato-Biliary-Pancreatic Surgery 2016;20(2):71-74
A hepatic lymphangioma is a rare benign neoplasm that is usually associated with systemic lymphangiomatosis. A solitary hepatic lymphangioma is extremely rare. Therefore, we present a rare case of a female patient who underwent right hepatectomy for solitary giant hepatic lymphangioma. A 42-year-old female presented to the emergency department with complaint of severe abdominal pain of the right upper quadrant. Abdominal computed tomography showed an approximately 23×30-cm sized, giant, relatively well-defined, homogenous cystic mass with few septa in the right liver (segments VII and VIII). The preoperative diagnosis was a giant hepatic cystadenoma or cystadenocarcinoma. We performed right hepatectomy. The permanent histopathological report revealed cystic lymphangioma of the liver. Although the prognosis of solitary hepatic lymphangioma after surgical resection is favorable, recurrence has been reported in literature.
Abdominal Pain
;
Adult
;
Cystadenocarcinoma
;
Cystadenoma
;
Diagnosis
;
Emergency Service, Hospital
;
Female
;
Hepatectomy
;
Humans
;
Liver
;
Lymphangioma*
;
Lymphangioma, Cystic
;
Prognosis
;
Recurrence
5.In vitro Induction of Cellular Differentiation of Human Fetal Liver Cell Lines with Sodium Butyrate.
Jung Hwan YOON ; June Sung LEE ; Hyo Suk LEE ; Chung Yong KIM
The Korean Journal of Hepatology 1997;3(3):193-201
BACKGROUND/AIMS: Imrnortalized human fetal liver cell lines established by transfecting simian virus 40 T gene wae found to lose differentiated liver cell functions in successive long-term culture. Butyrate, known as a differentiation-promoting agent for a variety of cancer cell lines, is produced in the colon by bacterial flora and selectively transported into the liver though the portal blood flow. Therefe, butyrate might play a role in the maintenance of differentiation in hepatocytes in vivo. In thepresent study, the effects of butyrate on cell growth and differentiation in human fetal liver cell lines was investigated. METHODS: Human fetal liver cell lines imrnortalized by SV 40 T antigen were treated with sodium butyrate (1mM), and cell growth rate after butyrate treatment were nmsured by the number of viable cells, determined by trypan blue dye exclusice method. The effects of sodium butyrate on the hepatocyte-specific differentiatian were assessed by albumin and alfa-fetoprotein (AFP) mRNA expression, analyzed using reverse-transcription polymerase chain reaction, and were also by the increment of albumin secretion into culture media, determined by a competitive inhibition ELISA. RESULTS: Treatment with sodium butyrate resulted in a cessation of cellular proliferation and alterations in cellular morphology (increased cell size and polygonal change in shape). The level of albumin mRNA after sodium butyrate treatment was elevated by about two times as compared to that of control. In contrast, AFP mRNA expression were dennstrated neither before nor after sodium butyrate treatment. The average amount of albumin released in the medium was less than 6pghnl/10'cells/2days in the absence of sodium butyrate, and increased to 17 p g/ml/10'cells/2days at day 2, 21ugfml 10'cells/2days at day 4 in the presence of sodium butyrate, and these levels thereafter were over 10 times higher than that in the absence of sodium butyrate until day 10. CONCLUSION: These mults indicate that treatment of immcetalized fetal liver cell lines with butyrate leads to inhibition of cellular proliferation and promotion of adult hepatocyte-specific differentiation.
Adult
;
Antigens, Viral, Tumor
;
Butyrates
;
Butyric Acid*
;
Cell Line*
;
Cell Proliferation
;
Cell Size
;
Colon
;
Culture Media
;
Enzyme-Linked Immunosorbent Assay
;
Hepatocytes
;
Humans*
;
Liver*
;
Polymerase Chain Reaction
;
RNA, Messenger
;
Simian virus 40
;
Sodium*
;
Trypan Blue
6.The Association Between Genetic Polymorphisms of the Ethanol-metabolizing Enzymes and Susceptibility to Alcoholic Liver Cirrhosis.
Sook Hyang JUNG ; Han Chu LEE ; Jung Hwan YOON ; Hyo Suk LEE ; Chung Yong KIM
The Korean Journal of Hepatology 1998;4(1):1-11
BACKGROUND/AIMS: There is considerable variance in individual susceptibility to hepato-toxic effects of ethanol as evidenced by the finding that only about 10-20% of alcoholics develop alcoholic liver cirrhosis. The aims of this study were, 1) to get the data on the genetic polymorphisms of three major ethanol-metabolizing enzymes (ADH, CYP2E1, ALDH) in normal Korean adults, and to search for the specific genotypes influencing alcohol drinking behavior by the comparison of allele frequencies between healthy control group and heavy drinker group with or without liver disease, 2) to investigate the influence of the genetic polymorphisms of these enzymes on the susceptibility to alcoholic liver disease by the comparison of allele frequencies between heavy drinker group without liver disease and alcoholic liver cirrhosis group. METHODS: Healthy control group included 53 healthy males in military service without evidence of liver disease or alcoholism. Heavy drinker group without liver cirrhosis included 29 males who had been drinking 80g or more of alcohol daily for more than ten years but did not have any clinical evidence of liver disease. Alcoholic cirrhosis group included 43 male patients who had drunk 80g or more of alcohol daily for more than ten years and had clinical evidences of overt cirrhosis. Subjects with hepatitis B surface antigen or anti-hepatitis C antibody were excluded. Genotypes of the three enzymes were determined by PCR (polymerase chain reaction) and restriction fragment length polymorphism (RFLP) with genomic DNAs extracted from peripheral leukocytes. RESULTS: 1) In healthy Korean males, allele frequency of ADH22, ADH31, CYP2E1 c2 and ALDH22 was 81%, 94%, 30% and 14%, respectively. 2) The absence of ALDH22 or CYP2E1 c2 allele were significant risk factors for being a heavy drinker (odds ratio,' 0.09, 0.42, respectively). 3) Although it was not associated with the polymorphism of each ethanol-metabolizing enzymes, the susceptibility to alcoholic liver cirrhosis was significantly associated with combined genotypes of ADH2(22) & ADH3(1+1)& CYP2E1 B or C. COMCLUSION: Genetic polymorphisms of ethanol-metabolizing enzyrnes are significantly associated with the suseptability to alcoholic liver disease as well as alcohol drinking behavior.
Adult
;
Alcohol Drinking
;
Alcoholics*
;
Alcoholism
;
Alleles
;
Cytochrome P-450 CYP2E1
;
DNA
;
Drinking
;
Ethanol
;
Fibrosis
;
Gene Frequency
;
Genotype
;
Hepatitis B Surface Antigens
;
Humans
;
Leukocytes
;
Liver Cirrhosis
;
Liver Cirrhosis, Alcoholic*
;
Liver Diseases
;
Liver Diseases, Alcoholic
;
Male
;
Military Personnel
;
Polymerase Chain Reaction
;
Polymorphism, Genetic*
;
Polymorphism, Restriction Fragment Length
;
Risk Factors
7.Prognostic factors of operable breast cancer.
Jung Hyun YANG ; Hwan Hyo LEE ; Bong Hwa LEE ; Ze Hong WOO
Journal of the Korean Surgical Society 1993;45(4):486-494
No abstract available.
Breast Neoplasms*
;
Breast*
8.Usefulness of Lens Culinaris Agglutinin-A Reactive Alpha-Fetoprotein for the Diagnosis of Hepatocelluar Carcinoma in Patients with Chronic Liver Disease Who Showed Significant Increment of Serum Alpha-Fetoprotein Level and No Mass Lesion in the Liver on U.
June Sung LEE ; Jung Hwan YOON ; Hyo Suk LEE ; Chung Yong KIM
The Korean Journal of Hepatology 1998;4(2):120-130
BACKGROUND/AIMS: Lens culinaris agglutinin-A reactive alpha-fetoprotein (AFP L3) has been reported to be highly specific for the diagnosis of hepatocellular carcinoma (HCC). The present study was to evaluate the clinical usefulness of AFP-L3 for the diagnosis of HCC in the patients either with chronic liver disease or with HCC in complete remission who showed significant increment of serum AFP level and no mass lesion in the liver on ultrasonography. METHODS: A total numer of 34 patients (24 with chronic liver disease, 10 with HCC in complete remission) were enrolled, who showed significant increment of serum AFP level and no mass lesion in the liver on ultrasonography. Serum AFP L3 levels were analysed by AFP differentiation kit L. Abdominal spiral CT or ultrasonogram was performed at 1-3 month intervals and all of the patients were followed up for more than 6 months. RESULTS: Among 24 patients with chronic liver disease, two were positive (higher than 15%) for AFP L3; however, HCC was not detected in these patients, while HCCs were detected in two of 22 patients negative for AFP L3 during followe-up. Eight of the 10 patients with HCC in complete remission were positive for AFP L3; recurrent HCCs were detected in 7 of those 8 patients as well as in the rest 2 patients negative for AFP L3 during follow-up. The overall sensitivity and specificity of AFP L3 measurement for the detection of HCC within 6 months of follow-up were 63.6% and 87.0%, respectively. The positive and negative predictive value for HCC in patients with chronic liver disease were O% and 90.9% and for recurrent HCC in HCC patients in remission were 87.5% and ON, respectively. CONCLUSION: The measurement of AFP L3 is suggested to be useful for the diagnostic strategy in patients either with chronic liver disease or hepatocellular carcinoma in complete remission, who showed progressive increment of serum AFP level and no mass lesion in liver on ultrasonogram.
alpha-Fetoproteins*
;
Carcinoma, Hepatocellular
;
Diagnosis*
;
Follow-Up Studies
;
Humans
;
Lens Plant*
;
Liver Diseases*
;
Liver*
;
Recurrence
;
Sensitivity and Specificity
;
Tomography, Spiral Computed
;
Ultrasonography*