1.A Case Report of Neurilemmoma in the Bronchial Wall.
Chi Young MOON ; Heung Bum LEE ; Yong Chul LEE ; Yang Keun RHEE
Tuberculosis and Respiratory Diseases 1998;45(3):619-623
Neurilemmoma, also called schwanomma, neurinoma, and perineural fibroblastoma is a rare benign tumor originated from the schwann cell of nerve sheath. They occur commonly at 20-50 aged person and involved the head and neck and flexor surface of the extremity. Histologically, they are characterized by Antoni A and Antoni B tissue composed of high and low cellularity. Primary neurilemmoma involved in the bronchial wall is extremely rare and few cases have been reported previously. We experienced neurilemmoma of the bronchial wall in a 72 year old woman The pulmonary radiology showed the right middle lobe collapse with single lymphadenopathy, and bronchoscopic biopsy was performed to confirm the neurilemmoma.
Aged
;
Biopsy
;
Extremities
;
Female
;
Head
;
Humans
;
Lymphatic Diseases
;
Neck
;
Neurilemmoma*
2.Angiocentric T - cell Lymphoma of the Skin.
Kwang Hyun CHO ; Seong Gyu YANG ; Chul Woo KIM ; Doo Hyun CHI ; Jai Kyoung KOH ; Young Keun KIM
Korean Journal of Dermatology 1996;34(6):953-960
BACKGROUND: Angiocentric T-cell lymphomas are rare T-cell malignancies which involve extranodal sites, such as the skin, nasal cavity, soft tissue and gastrointestinal tract. They have been reported with significant frequency in Asia. OBJECTIVES: The main objective of this study is to characterize the clinical, pathological, and immunohistochemical featnres of cutaneous angiocentric T-cell lymphoma. Another objective is to search for the Epstein-Barr virus (EBV) in the tissues of cutaneous angiocentiric T cell lymphoma. METHODS: Clinical records, laboratory data, and histopathologic sections of 12 patients with cutaneous angiocentric T-cell lymphoma were reviewed. Paraffin tumor tissues were immunophenotyped. In situ hybridizaion studies were performed to detect the EBV genomes. RESULTS: The ages of the 12 patients ranged from 34 to 64 years(mean 45.8 years). The cutaneous lesions were nodules or plaqes, and were with ulcerated or had intact skin. Eight patients had evidence of extracutaneous involvement, usually involving lymph nodes, liver, and spleen. Eleven patients showed the abnormal laboratory findings including anemia, leukopenia, and elevated level of LDH. The disease pursued an aggressive course and was not uncommonly resistant to treatment. Histologically, the lymphomatous infiltrate occurred predominantly in the subcutaneous layer with involvement of the dermis. The pattern was mainly perivascular and periadnexal. A prominent feature was invasion of small or medium vesselsby lymphoma cells. The infiltrating lymphrcytes expressed CD45RO in all cases; variable expression of CD3 and CD56 was detected in piaffin sections. Among the 11 cases where in situ hybridization was performed, EBV genome could be detected in 9 cases. CONCLUSION: Angiocentric T-cell lymphoma of the skin is an aggressive lymphoma distinct from classic cutaneous T-cell lymphoma. However, further studies are needed to regard them as a homogeneous entity of T-cell lymphoma involving the skin.
Anemia
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Asia
;
Dermis
;
Gastrointestinal Tract
;
Genome
;
Herpesvirus 4, Human
;
Humans
;
In Situ Hybridization
;
Leukopenia
;
Liver
;
Lymph Nodes
;
Lymphoma*
;
Lymphoma, T-Cell
;
Lymphoma, T-Cell, Cutaneous
;
Nasal Cavity
;
Paraffin
;
Skin*
;
Spleen
;
T-Lymphocytes
;
Ulcer
3.Clinical Features of Percutaneous Hemivertebroplasty in Patients with Osteoporotic Vertebral Compression Fractures.
Ju Chul YANG ; Kwan Ho PARK ; Tae Wan KIM ; Jeil RYU ; Moon Pyo CHI ; Jae O KIM
Korean Journal of Neurotrauma 2013;9(1):17-22
OBJECTIVE: Unilateral percutaneous vertebroplasty is a widely accepted treatment for osteoporotic vertebral compression fractures (VCFs). However, bone cement may fail to fill both hemivertebra from the single needle. We assessed the radiographic and clinical outcome of hemivertebroplasty (HVP) and evaluated the factors that affect subsequent VCFs after HVP. METHODS: Fifty two patients who underwent HVP were reviewed. VCFs were identified based on clinical and radiological findings. The patients were grouped into two groups: 1) no subsequent VCFs, 2) subsequent VCFs. We evaluated the association between age, sex, body mass index (BMI) and bone mineral density (BMD) and subsequent VCFs. We also assessed the impact of location, type and grade of fracture, endplate fracture, burst fracture, bone cement volume on subsequent VCFs. We analyzed the compression ratio, wedge angle, kyphotic angle, and visual analogue scale (VAS) score in both groups. RESULTS: There were no significant differences in age, gender, BMI, and BMD between two groups. No significant difference was also found in pre-existing VCF, location, type and grading of fracture, endplate fracture, burst fracture, amount of bone cement, and radiological findings such as compression ratio, wedge angle, and kyphotic angle between two groups. The final mean VAS scores of patients with or without subsequent VCFs were 3.11 and 4.02, respectively. CONCLUSION: No major risk factors for the subsequent VCFs after HVP were found. However, we identified adjacent fractures, refractures, and remote fractures after HVP in chronological order. Therefore, long-term follow-up is necessary to evaluate the effectiveness of HVP to osteoporotic VCFs.
Body Mass Index
;
Bone Density
;
Follow-Up Studies
;
Fractures, Bone
;
Fractures, Compression
;
Humans
;
Needles
;
Osteoporotic Fractures
;
Risk Factors
;
Vertebroplasty
4.Optimal Culture Conditions for Mycelial Growth and Exo-polymer Production of Ganoderma applanatum.
Yong Tae JEONG ; Sang Chul JEONG ; Byung Keun YANG ; Rezuanul ISLAM ; Chi Hyun SONG
Mycobiology 2009;37(2):89-93
The effect of fermentation parameters and medium composition on the simultaneous mycelial growth and exo-polymer production from submerged cultures of Ganoderma applanatum was investigated in shake-flask cultures. The optimum initial pH for mycelial growth and exo-polymer production was 5.0 and 6.0, respectively. The optimum temperature was 25degrees C and the optimum inoculum content was 3.0% (v/v). The optimal carbon and nitrogen sources were glucose and corn steep powder, respectively. After 12 days fermentation under these conditions, the highest mycelial growth was 18.0 g/l and the highest exo-polymer production was 3.9 g/l.
Carbon
;
Fermentation
;
Ganoderma
;
Glucose
;
Hydrogen-Ion Concentration
;
Nitrogen
;
Zea mays
5.Prognostic Factors in Intracranial Aneurysmal Surgery.
Byung Yearn CHOI ; Dong Ro HAN ; Oh Lyong KIM ; Yang Chul CHI ; Soo Ho CHO
Journal of Korean Neurosurgical Society 1989;18(6):836-845
A prospective analysis of 80 consecutive operated cases of aneurysm were carried out to know the prognostic factors in intracranial aneurysmal surgery. Analysis of end-results with respect to aneurysmal locations and timing of operation showed that the internal carotid artery aneurysm did not make difference in outcome regardless of the timing of surgical intervention, but anterior cerebral artery, middle cerebral artery, and multiple aneurysm were more poor outcomes in the early surgical group(p<0.05). The more grave initial neurological state showed the worse surgical end-results. The poor results were shown in cases of above 3 mm in thickness of the basal cisternal hemorrhage and/or above 30 ml in volume of the intracerebral hematoma on the brain CT scan. During the operation, no sunkened brain, a spasm of offending artery, premature rupture of aneurysm, and post-operative residual intracerebral hematoma were also adverse effects to the post-operative outcomes.
Aneurysm
;
Anterior Cerebral Artery
;
Arteries
;
Brain
;
Carotid Artery, Internal
;
Hematoma
;
Hemorrhage
;
Intracranial Aneurysm*
;
Middle Cerebral Artery
;
Prospective Studies
;
Rupture
;
Spasm
;
Tomography, X-Ray Computed
6.Risperidone in Combination with Mood Stabilizers for Acute Mania: A Multicentre, Open Study.
Kwang Soo KIM ; Chi Un PAE ; Jin Sang YOON ; Young Hoon KIM ; Yang Hyun LEE ; Ik Seung CHEE ; Chul LEE ; Hye Kyoung SONG ; Sung Ku CHOI ; Won Myong BAHK
Journal of Korean Neuropsychiatric Association 2005;44(2):207-212
OBJECTIVE: The primary purpose of this study was a replication of the effectiveness and tolerability of risperidone in the treatment of patients with acute mania in very larger cohort in naturalistic treatment setting to extend the data on the effect and tolerability of risperidone in the treatment of patients with acute mania to Asian population. METHODS: A total of 909 patients with DSM-IV criteria of bipolar disorder current manic and hypomanic episode, entered this large, open, multicentre study. The Young Mania Rating Scale (YMRS), Clinical Global Impression (CGI) and Simpson-Angus Rating Scale (SARS) were measured at baseline and weeks 1, 3 and 6, for the assessment of effectiveness and extrapyramidal symptom (EPS). RESULTS: This study showed statistically significant reduction of scores on the YMRS and CGI-s (mean change=-23.5+/-11.8, p<0.0001;mean change=-2.7+/-1.5, p<0.0001, respectively) from the baseline to the endpoint (week 6). Number of patients with 50% reduction or more in the YMRS and CGI-s scores was 693 (77.8%) and 630 (70.7%) at endpoint, respectively. There were no statistically significant increments of scores on SARS. Risperidone was generally well tolerated. CONCLUSION: The present larger open study demonstrates that risperidone add-on therapy is effective and tolerable in treatment of bipolar disorder, replicating results in various controlled and uncontrolled studies from Western countries.
Asian Continental Ancestry Group
;
Bipolar Disorder*
;
Cohort Studies
;
Diagnostic and Statistical Manual of Mental Disorders
;
Humans
;
Risperidone*
7.Clinical Significance of Methacholine Bronchial Challenge Test in Differentiating Asthma From COPD.
Yun Kyung HONG ; Chi Ryang CHUNG ; Kyung Hyun PAECK ; So Ri KIM ; Kyung Hoon MIN ; Seoung Ju PARK ; Heung Bum LEE ; Yong Chul LEE ; Yang Keun RHEE
Tuberculosis and Respiratory Diseases 2006;61(5):433-439
BACKGROUND: Although airway hyper-responsiveness is one of the characteristics of asthma. bronchial hyper-responsiveness has also been observed to some degree in patients with chronic obstructive pulmonary disease (COPD). Moreover, several reports have demonstrated that a number of patients have both COPD and asthma. The methacholine bronchial challenge test (MCT) is a widely used method for the detecting and quantifying the airway hyper-responsiveness, and is one of the diagnostic tools in asthma. However, the significance of MCT in differentiating asthma or COPD combined with asthma from pure COPD has not been defined. The aim of this study was to determine the role of MCT in differentiating asthma from pure COPD. METHOD: This study was performed prospectively and was composed of one hundred eleven patients who had undergone MCT at Chonbuk National University Hospital. Sixty-five asthma patients and 23 COPD patients were enrolled and their MCT data were analyzed and compared with the results of a control group. RESULT: The positive rates of MCT were 65%, 30%, and 9% in the asthma, COPD, and control groups, respectively. The mean PC20 values of the asthma, COPD, and control groups were 8.1+/-1.16 mg/mL, 16.9+/-2.21 mg/mL, and 22.0+/-1.47 mg/mL, respectively. The sensitivity, specificity, positive predictive value, and negative predictive value of MCT for diagnosing asthma were 65%, 84%, 81%, and 69%, respectively. The sensitivity, specificity, positive predictive value, and negative predictive value of MCT (ed note: please check this as I believe that these values correspond to the one PC20 value. Please check my changes.) at the new cut-off points of PC20 < or = 16 mg/ml, were 80%, 75%, 78%, and 78%, respectively. CONCLUSION: MCT using the new cut-off point can be used as a more precise and useful diagnostic tool for distinguishing asthma from pure COPD.
Asthma*
;
Bronchial Provocation Tests*
;
Humans
;
Jeollabuk-do
;
Methacholine Chloride*
;
Prospective Studies
;
Pulmonary Disease, Chronic Obstructive*
8.Schizophrenia and Glutathione S-transferase P Gene Polymorphism.
Chi Un PAE ; Young Min LEE ; Dae Hyun YANG ; Jung Jin KIM ; Hye Suk YU ; Chang Uk LEE ; Soo Jung LEE ; Chul LEE ; In Ho PAIK
Journal of Korean Neuropsychiatric Association 2004;43(1):23-28
OBJECTIVES: This study is aimed to test the association between the coding sequence functional polymorphism (I105 V) of glutathione S-transferase P gene (GSTP1) and schizophrenia. METHODS: Two hundred fourteen (214) patients with schizophrenia according to the DSM-IV criteria and one hundred ten (110) healthy controls were enrolled in this study. Patients and controls were biologically unrelated age and sex- matched native Koreans. Genotyping for the GSTP1 polymorphism was performed by polymerase chain reaction-restriction fragment length polymorphism. RESULTS: Genotype and allele distributions of the GSTP1 polymorphism in patients with schizophrenia were not significantly different from those of the controls. Comparisons of clinical variables also were not different according to genotype and allele distribution. CONCLUSION: The present study suggests that the GSTP1 polymorphism may not confer susceptibility to development of schizophrenia, at least in the Korean population.
Alleles
;
Clinical Coding
;
Diagnostic and Statistical Manual of Mental Disorders
;
Genotype
;
Glutathione Transferase*
;
Glutathione*
;
Humans
;
Schizophrenia*
9.Changes of the Vital Sign, Cerebral Perfusion Pressure and Intracranial Pressure in Variable Degree of Head Elevation.
Yang Chul CHI ; Jang Ho BAE ; Dong Ro HAN ; Eun Sig DOH ; Oh Lyong KIM ; Byung Yearn CHOI ; Soo Ho CHO
Journal of Korean Neurosurgical Society 1989;18(5):733-740
Intracranial pressure was monitored in 23 patients, either who exhibited an increase in pressure or who were considered at risk for the developement of intracranial hypertention. The intracranial pressure was measured while the patient was in the position from supine to 50 degree of head elevation. The intracranial pressure was decreased during head elevation, but 8 cases(34.8%) were not changed. The maximal cerebral perfusion pressure was seen at 50 degree of head elevation(52.2%), next 30 degree(21.7%) and 40 degree(7.4%) in orders. The changes of vital sign were not significant during head elevation. To control the intracranial pressure, the patient who were managed in the position of 30degrees and 50degrees head elevation showed most effective cerebral perfusion pressure without any significant changes of the vital sign and central venous pressure.
Central Venous Pressure
;
Head*
;
Humans
;
Intracranial Pressure*
;
Perfusion*
;
Vital Signs*
10.A case of diastasis of the symphysis pubis accompanying gait disturbance developed before labor pain.
Eun Jeong JANG ; Kyung Suk CHI ; Jun Soo KIM ; Do Gyun KIM ; Hoe Saeng YANG ; Jae Chul SIM ; Jee Young HWANG
Korean Journal of Obstetrics and Gynecology 2007;50(4):678-683
We experienced a case of diastasis of the symphysis pubis accompanying severe pubic pain and serious gait disturbance, which was developed at 34 weeks gestation before labor pain in 36-year-old primiparous woman, who has experienced previous cesarean section at her first pregnancy due to pelvic pain before onset of labor, so we report a case with a review of the literature.
Adult
;
Cesarean Section
;
Female
;
Gait*
;
Humans
;
Labor Pain*
;
Pelvic Pain
;
Pregnancy