1.A Case of Eruptive Vellus Hair Cyst Associated with Steatocystoma multiplex.
Dou Hee YOON ; Sung Woo CHOI ; Baik Kee CHO
Korean Journal of Dermatology 1994;32(1):149-152
Eruptive vellus hair cysts and steatocystoma multiplex have clinical similarities in terms of age of onset, location and appeararice of the lesions, but histopathologic feitures are distinctively differen-tiated. We present herein a 37-year-old woman with eruptive vellus hair cyst and steatocystoma multiplex as well. The histopathologic sections from 2 different lesions showed features of both eruptive vellus hair cyst with sebaceous gland in and near the cyst wall, and steatocy toma multiplex with rudimentary hair follicle near the cyst wall. This case may support the premie that eruptive vellus hair cyst and steatocystoma multiplex have a common developmental origin.
Adult
;
Age of Onset
;
Female
;
Hair Follicle
;
Hair*
;
Humans
;
Sebaceous Glands
;
Steatocystoma Multiplex*
2.A study on the relationship between fatigue and stress.
Sung Hyun KIM ; Jin Hee YOON ; Hye Soon PARK
Journal of the Korean Academy of Family Medicine 1992;13(3):226-232
No abstract available.
Fatigue*
3.A Case of Stage IV-S Neuroblastoma with N-myc Amplification and Coagulopathy.
Min Ji KIM ; Yoon Ah SUNG ; Don Hee AHN
Korean Journal of Pediatric Hematology-Oncology 1997;4(1):161-166
Neuroblastoma stage IV-S patients have frequent spontaneous remission and high survival rate. Many investigators have recommended minimal or no therapeutic intervention ; however, some patient do experience progressive disease and ultimately die of neuroblastoma. We experienced a case of stage IVS neuroblastoma with N-myc amplification and coagulopathy. This patient has treated with combination chemotherapy and radiation therapy, then remained disease free for 1 year on the follow up till March, 1997.
Drug Therapy, Combination
;
Follow-Up Studies
;
Humans
;
Neuroblastoma*
;
Remission, Spontaneous
;
Research Personnel
;
Survival Rate
4.Comparison of Laparosopic Varicocelectomy with Subinguinal Varicocelectomy.
Hee Cheol YOON ; Jun RHO ; Chul Sung KIM
Korean Journal of Urology 2000;41(11):1403-1408
No abstract available.
5.A Comparative Analysis of the Preoperative Chemoradiation Versus Radiation only for Mid and Lower Rectal Cancer.
Je Ryong KIM ; Jae Sung KIM ; Wan Hee YOON
Journal of the Korean Society of Coloproctology 1998;14(3):349-358
This study was designed to evaluate the worth of preoperative chemoradiation therapy in the management of locally advanced rectal cancer. Between march 1993 and January 1997, 64 patients with adenocarcinoma of the rectum were treated with preoperative irradiation followed by operation by one surgeon at department of surgery, Chungnam national university hospital. Cancers were treated with high-dose radiation (45 to 54 Gy) with (group 2) or without (group 1) chemotherapy Preoperatively 64 Patients were analysed prospectively, of these, 15 cases were preoperative radiotherapy alone arm and 49 cases were preoperative radiotherapy plus chemotherapy arm. The average age of the patients were 56 years (range 38~67) in group 1 and 57 years (range 27~80) in group 2. Male to female ratio was 8 : 7 in group 1 and 30 : 19 in group 2. Most clinical stage of the primary tumor mass were 73 (80% in Group 1,96% in group 2), being palpated slightly fixed (40% in group 1, 43% in group 2) or fixed (13.3% in group 1, 24.5% in group 2). As to distance of tumor from anal verge, most patients ranged from 4 to 8 cm (53% in group 1, 63.3% in Group 2). Chemotherapy consisted of 2 cycles of 5-fluorouracil (500 mg/m2/day for S days) delivered as a continuous infusion or bolus therapy and low-dose leukovorin (20 mg/m2/day for 5 days). After six weeks resting period of radiation, definitive surgical approach was performed. Overall treatment related toxicity rate was similar in both group except erythema on perineal skin, which was more frequent in group 2 than in group 1. Most frequent postoperative complication was intestinal obstruction (7.8%) followed by wound infection (6.3%), but there was no significant difference between two groups. There was one case of postoperative mortality in group 2 patients at 44 days after operation due to pneumonia and sepsis combined with liver cirrhosis. Tumor depth was downstaged in 38.5% of group 1 and 70% of group 2 patients on preoperative CT staging, and nodal downstaging was more effective on the respect of postoperative pathological report. Overall recurrence rate was 38.5% in group 1 and 20.5% in group 2. Of these, failure occured first as a distant metastasis more frequently than as a local recurrence in both group. These data do suggest that the preoperative chemotherapy and radiotherapy used are as safe as preoperative radiotherapy alone. Futhermore, tumor and lymph node downstaging are more effective in combined arm. Preoperative chemotherapy will more promising in prevention of distant metastasis when treated in the period of least metastatic tumor burden. Whether combined arm will have greater or lesser survival awaits the completion of this relevant study.
Adenocarcinoma
;
Arm
;
Chungcheongnam-do
;
Drug Therapy
;
Erythema
;
Female
;
Fluorouracil
;
Humans
;
Intestinal Obstruction
;
Leucovorin
;
Liver Cirrhosis
;
Lymph Nodes
;
Male
;
Mortality
;
Neoplasm Metastasis
;
Pneumonia
;
Postoperative Complications
;
Prospective Studies
;
Radiotherapy
;
Rectal Neoplasms*
;
Rectum
;
Recurrence
;
Sepsis
;
Skin
;
Tumor Burden
;
Wound Infection
6.Anticardiolipin Antibody (ACA) and Lupus Anticoagulant (LA): Association with Vascular Access Occlusion in Hemodialysis (HD) Patients.
Duk Hee KANG ; Seung Ki RYU ; Sung Nam KIM ; Kyun Il YOON ; Yoon Ha LEE
Korean Journal of Medicine 1997;53(5):661-670
OBJECTIVES: Anticardiolipin antibody (ACA) and lupus anticoagulant (LA) are acquired antiphospholipid antibodies (APAs), which are regarded as important risk factors far vascular thrombosis and recurrent fetal loss. Although the clinical relevance of APAs in dialysis patients is uncertain, recent studies have suggested that APAs are involved in bioincompatibility and thrombogenic complications in hemadialysis (HD) patients. METHOD: We performed a cross sectional study of ACA and LA in 50 stable HD patients and their 68 vascular accesses (52 native arteriovenous fistulae and 16 synthetic arterovenous grafts), with the analysis of factors associated with the presence of APAs and the retrospective evaluation of vascular access occlusion (VAO). LA was assessed by platelet neutralization method whereas IgG-ACA was measured by a solid phase ELISA. Values higher than 23GPLU/ml (IgG phospholipid units) were considered to be positive for IgG-ACA and positive values for LA was more than 8 seconds in prolongation of the clotting time with human platelet lysate. Vascular access survival was assessed by Kaplan- Meier method, RESULTS: The mean age of the subject (M:F 21:29) was 46 years and the mean duration of hemodialysis was 49 months. The frequency of VAO in entire subjects was 0.45+/-0.98 episodes/patient year. The median value of IgG-ACA was 16.0 GPLU/ml with a distribution from 2.7 to 46.1GPLU/ ml. The median titer of I.A was 4.5 (3.1-45.6) seconds. Fourteen patients (28%) were found to have at least one episode of VAO. In spite of comparable clinical and biochemical data according to the presence of VAO, the titers of IgG-ACA (13.6+/-7.7 vs, 20.3+/-8.7GPLIJ/ml, P<0.05) and LA (4.5+/-2.9 vs. 11.7 +/-12.6sec, P<0.05) were significantly higher in VAO group. Six out of 50 patients(12%) had an increased titer of IgG-ACA and LA was found in 11 patients(22%). No patients were positive for ACA and LA simultaneously. There was no significant difference in sex, etiology of ESRD, diabetic status, the dosage of heparin during HD or the amount of erythropoietin administered according to the presence of APAs. We could not find any significant correlation between the titer of APAs and age, duration of dialysis, blood pressure, platelet count and biochemical parameters. In the patients with positive ACA, the frequency of VAO was 1.05+/-0.12 episodes/patient year, which was significantly higher than patients without ACA (0.33+/-0.17 episodes/ patient year, P<0.05). In the patients with the presence of LA(1.06+/-0.43 vs. 0.12+/-0.06 episodes/ patients year, P<0.01). The median vascular access survival time in IgG-ACA positive patients (32.7 months) was significantly decreased compared to 66.8 months in IgG-ACA negative group. CONCLUSION: Our data suggest that the presence of APAs (ACA and/or LA) affects the event-free vascular access survival in HD patients. Therefore the evaluation of APAs status have to be included in the diagnostic strategies for the patients with recurrent VAO. Further studies are necessary to explore the pharmacologic intervention method to decrease APAs and prevent VAO in HD patients.
Antibodies, Anticardiolipin*
;
Antibodies, Antiphospholipid
;
Arteriovenous Fistula
;
Blood Platelets
;
Blood Pressure
;
Dialysis
;
Enzyme-Linked Immunosorbent Assay
;
Erythropoietin
;
Heparin
;
Humans
;
Kidney Failure, Chronic
;
Lupus Coagulation Inhibitor*
;
Platelet Count
;
Renal Dialysis*
;
Retrospective Studies
;
Risk Factors
;
Thrombosis
7.A Case of Recurrent Pregnancy Loss Associated With Systemic Lupus Erythematosus.
Se Yul HAN ; Tae Ki YOON ; Kwang Yul CHA ; Dong Hee CHOI ; Yoon Sung NAM
Korean Journal of Obstetrics and Gynecology 1999;42(1):142-144
Systemic lupus erythematosus(SLE) is a multisystem disorder with a peak age of onset in the second and fourth decades of life predominantly occuring in females who will usually have the potential to become pregnant. This female to male predominance is greatest during childbearing years approaching a ratio of 13:1, after the menopause it declines to a ratio of 3:1, the ratio also seen in prepubertal years. In practice, despite the higher prevalence of rheumatiod arthritis, pregnancy in SLE is the most common management problem confronting physician and obstetrician amongst the connective tissue disorders and it is particularly important as the outcome of pregnancy is more unpredictable in this disease. As well as having clinical consequences for the health of both mother and fetus, pregnancy in lupus provides a model for studying the importance of other biological phenomena characterizing the disease. For example, the transplacental passage of maternal antibodies to Ro(SSA) and La(SSB) and their strong association with the neonatal lupus syndrome suggests a pathogenetic role for these autoantibodies. Other relevant issues are feto-meternal immunological tolerance and hormonal interaction with the immune system. We have experienced a case of recurrent pregnancy loss associated with systemic lupus erythematosus. So we report this case with a brief review of literatures.
Age of Onset
;
Antibodies
;
Arthritis
;
Autoantibodies
;
Biological Phenomena
;
Connective Tissue
;
Female
;
Fetus
;
Humans
;
Immune System
;
Lupus Erythematosus, Systemic*
;
Male
;
Menopause
;
Mothers
;
Pregnancy*
;
Prevalence
8.A Case of Toxoplasmosis Detected in Habitual Aborter.
Se Yul HAN ; Tae Ki YOON ; Kwang Yul CHA ; Dong Hee CHOI ; Yoon Sung NAM
Korean Journal of Obstetrics and Gynecology 1999;42(2):436-438
Toxoplasma gondii, an intracellular coccidian protozoan, is the causative agent of toxoplasmosis, a widespread infection affecting various birds and mammals including humans. In immunocompetent hosts, the infection is usually asymptomatic and benign. Toxoplasmosis is either congenital or acquired. In general prenatal therapy of congenital toxoplasmosis is beneficial in reducing the ncy of infant infection. Therapies are based primarily on spiramycin because of the relative lack of toxicity and high concentration achieved in the placenta. Clindamycin is the standard drug for chemoprophylaxis in newborn infants, and is directed at preventing the occurrence of retinochoroiditis as a late sequel to congenital infection. The standard treatment for acquired toxoplasmosis in both immunocompetent and immunodeficient patients is the synergistic combination of pyrimethamine and sulphonamides. Toxoplasmic encephalitis is tbe most common manifestation of acquired toxoplasmosis in immunocompromised patients and if not treated is fatal. However, because of toxicity, the therapeutic efficacy of pyrimethamine sulphonamide combinations may be seriously limited in immunodeficient patients. We have experienced a case of toxoplasmosis during the workup of habitual aborter. So we report this case with a brief review of literatures.
Birds
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Chemoprevention
;
Clindamycin
;
Encephalitis
;
Humans
;
Immunocompromised Host
;
Infant
;
Infant, Newborn
;
Mammals
;
Placenta
;
Pyrimethamine
;
Spiramycin
;
Toxoplasma
;
Toxoplasmosis*
;
Toxoplasmosis, Congenital
9.The Effects of TGF-beta2 and bFGF on the Proliferation of Retinal Pigment Epithelial Cells.
Hee Seong YOON ; Sae Heun ROH ; Sung Chul LEE ; Jin Hee JEONG ; Young Hyun YOO
Journal of the Korean Ophthalmological Society 1998;39(6):1192-1203
This study was undertaken to document the effect of transforming growth factor-beta2 (TGF-beta2(TGF-beta2) and basic fibroblast growth factor (bFGF) on the proliferation of pig retinal pigment epithelial cells (RPE). Whereas bFGF increased the proliferation, TGF-beta2 showed the inhibitory effect on the proliferation The inhibitory effect of TGF-beta2 disappeared in RPE subcultured with 10ng/ml of bFGF. Both TGF-beta2- and bFGF-specific antisense oligonucleotides blocked the autocrine effect of the growth factors. PLC-71 -specific antisense oligonucleotide inhibited the effect of TGF-beta2 and bFGF. Genistein inhibited the effect of TGF-beta2 and bFGF in dose-dependent man, ner. The data suggest the involvement. of in PLC-/1 and tyrosine kinase in signalling.
Epithelial Cells*
;
Fibroblast Growth Factor 2
;
Genistein
;
Intercellular Signaling Peptides and Proteins
;
Oligonucleotides, Antisense
;
Protein-Tyrosine Kinases
;
Retinaldehyde*
;
Transforming Growth Factor beta2*
10.The Role of NF-kappaB in the TNFalpha-induced Hyperplasia of Synoviocytes Isolated from Patients with Rheumatoid Arthritis.
Jee Hee YOON ; Sung Hee HWANG ; So Yeon MIN ; Ho Yeon KIM
Korean Journal of Immunology 2000;22(3):131-137
No abstract available.
Arthritis, Rheumatoid*
;
Humans
;
Hyperplasia*
;
NF-kappa B*