1.A Study of Phototoxicity Using the Candida Albicans Test and the Photohemolysis Test.
Seung Hyun HONG ; Hyun Chul CHOI ; Kee Chan MOON
Korean Journal of Dermatology 1995;33(2):268-274
Background: If phototoxic:ity can be predetermined in vitro, the information will aid in prognosticating whether or not caimpounds have a photosensitizing pczrlial. OBJECTIVE: For the evaluation of the phototoxic potentials of reral drugs, we performed the Candida albicans test and the photohemolysis test. METHODS: The Candida altiicans test is based on growth inhibtion of Candida albicans after application of the drug and ultraviolet light A( UVA ) irradiatior and the photohemolysis test is based on hemolysis of red blood cells caused by irradiation ir the presence of photosensitizing compounds. In the Candida albicans test, clear zones around the drug patches were evaluated, which means positive results for the phototoxic potential of the drugs. In the photohemolysis test, the amounts of hemolysis were evaluated by measuring the relar absorbance at 540nm using a spectrophotometer. RESULTS: In the Candida albicans test, ibuprofen, naldix acid, chlorpromazine and thiodiphenylamine showed positive results, whereas others did not the photohemolysis test, griseofulvin, ibuprofen and nalicdixic acid showed increased amounts hemolysis at UVA and ultraviolet light B(UVB) irracliation, and chlorpromazine, thiodiphenylaiair, chlorothiazide and piroxicam showed increased amounts of hemolysis at UVA irradiation only. CONCLUSION: The results showed that both methods were goodness screening tests for demonstrating the phototoxicity of therapeutic drugs.
Candida albicans*
;
Candida*
;
Chlorothiazide
;
Chlorpromazine
;
Dermatitis, Phototoxic*
;
Erythrocytes
;
Griseofulvin
;
Hemolysis
;
Ibuprofen
;
Mass Screening
;
Piroxicam
;
Ultraviolet Rays
2.Radiological evaluation of cortical rim sign of the kidney
Yea Seong YOUN ; Seung Moon YANG ; Ki Chul CHOI
Journal of the Korean Radiological Society 1983;19(4):837-843
The rim sign in renovascular compromise may be defined as a thin nephrographic rim outlinning a kidney with another wise faint nephrogram. Renal infarction with gelform and blood clots was induced experimentally in 5 dogsand high dose IVP and CT were performed to evaluate renal cortical rim sign after renal infarction. One expireddue to anesthetic technical failure, and one was embolized partially. So we could be obtain the result on 3 dogs.The reults were as follows; 1. The high dose IVP films show cortical rim sign on 24 hrs and 72 hrs films in twodogs. The CT films show rim sign in 3 dogs. 2. The rim sign may be visualized, if the renal artery is occuludedenough to drop perfusion presssure below the authoregulatory range. 3. The high dose IVP and early nephrogramphase are necessary for the rim sign.
Animals
;
Dogs
;
Infarction
;
Kidney
;
Perfusion
;
Renal Artery
3.Treatment of Tracheobronchial Stenosis with a Self-Expandable Metallic Stents.
Yo Won CHOI ; Yong Soo KIM ; Seok Chol JEON ; Chang Kok HAHM ; Chul Seung CHOI
Journal of the Korean Radiological Society 1994;31(1):35-41
PURPOSE: We analysed the role of modified Gianturco self-expandable stents in the treatment of tracheobronchial stenosis in 13 patients. MATERIALS AND METHODS: We inserted modified Gianturco self-expandable stents under the fluoroscopic and bronchoscopic guidance. There were stenosis in the trachea(n--2), the right main bronchus(n=2), and the left main bronchus(n=9). The causes of the stenosis were endobronchial tuberculosis(n=10), intubation granuloma (n=l), restenosis after surgical reconstruction(n=2). RESULTS: Dyspnea or wheezing was improved within 1 or 2 days following the procedure. There were 32% and 22% respective increase in average FEV1 and FVC. Lung perfusion scan showed 9.6% increase of perfusion in the involved lung. No complications related to the procedure were encountered. During follow-up period of up to 31 months, 2 patients showed tracheal or bronchial restenosis, at 3 and 6 months, retrospectively. There was a distal migration of the stents in one case. CONCLUSION: During the follow up period after stent insertion, improvement of the obstructive changes and dyspnea persisted in 10 out of 13 patients. The modified Gianturco self-expandable metallic stents may be a good choice for the treatment of tracheobronchial stenosis, either as a primary treatment, or when the reconstruction failed.
Constriction, Pathologic*
;
Dyspnea
;
Follow-Up Studies
;
Granuloma
;
Humans
;
Intubation
;
Lung
;
Perfusion
;
Respiratory Sounds
;
Retrospective Studies
;
Stents*
4.Fine Needle Aspiration Biopsy of the Lung in Children with Diffuse Pulmonary Lesions Suggesting Pneurnocystis carinii Pneumonia.
Yo Won CHOI ; Yong Soo KIM ; Seok Chol JEON ; Chang Kok HAHM ; Chul Seung CHOI
Journal of the Korean Radiological Society 1994;30(6):1147-1150
PURPOSE: The purpose of this study was to determine the following:the safety of fine needle aspiration biopsy in immunocompromized children with radiographic features of Pneumocystis car/nil pneumonia, its diagnostic rate in those groups and the appropriate radiographic stage for fine needle aspiration biopsy to prove the etiologic agent. METHODS AND MATERIALS: We retrospectively reviewed the patient records of 16 children with immune compromizing diseases who had undergone fine needle aspiration biopsy of the lung. They showed the infectious sign of the lung along with the radiographic pattern of diffuse pulmonary disease, suggesting Pneumocystis carlnil pneumonia. All patients had underlying lymphoreticular malignancies including 14 acute lymphocytic leukemia and 2 non Hodgkin's lymphoma. According to the radiographic pattern of biopsy site, parenchymal disease was categorized as fine reticulonodular density(n=4), ground-glass opacity(n=9) and compact consolidation(n=3). We assessed the diagnostic rate of Pneumocystis carinii pneumonia and complications in each of the three groups. RESULTS: A diagnosis of Pneumocystis carinii pneumonia was established by fine needle aspiration biopsy in 9 patients(56%) including 2 of 4 patients with fine reticulonodular density, 4 of 9 patients with ground-glass opacity, and all 3 patients with compact consolidation. Four patients(25%) developed pneumothorax, and three of them required tube insertion. There was no patient who developed hemoptysis. CONCLUSION: Fine needle aspiration biopsy is a safe and easy method that can yield Pneumocystis carinii organism at a relatively high rate in immunocompromized children with diffuse pulmonary lesions suopicions of Pneumocystis carinii pneumonia. We recommend performing fine needle aspiration biopsy regardlesss of radiographic patterns when Pneumocystis carinii pneumonia is suggested.
Biopsy*
;
Biopsy, Fine-Needle*
;
Child*
;
Diagnosis
;
Hemoptysis
;
Humans
;
Lung Diseases
;
Lung*
;
Lymphoma, Non-Hodgkin
;
Pneumocystis
;
Pneumocystis carinii
;
Pneumonia*
;
Pneumonia, Pneumocystis
;
Pneumothorax
;
Precursor Cell Lymphoblastic Leukemia-Lymphoma
;
Retrospective Studies
5.A study on the rapid development of ciprofloxacin resistane in methicillin-resistant staphylococcus aureus.
Chul Weon CHOI ; Hee Jin JUNG ; Heung Jung WOO ; Sei Yong KANG ; Woo Joo KIM ; Seung Chul PARK
Korean Journal of Medicine 1993;45(1):92-98
No abstract available.
Ciprofloxacin*
;
Methicillin Resistance*
;
Methicillin-Resistant Staphylococcus aureus*
6.Subconjunctival Orbital Fat Prolapse.
Woong Chul CHOI ; Je Seung LEE
Journal of the Korean Ophthalmological Society 2000;41(7):1609-1613
Subconjuctival orbital fat prolapse is a disease, which can be diagnosed by clinical manifestations and treated with simple procedure. Intraconal fat prolapses through weakened tenon and protrudes into subconjunctival space. The mass shows convex anterior margin and places at superotemoral region. The mass shrinks when indented and enlarges by putting pressure on the globe. It is frequently seen on males over 60 years old. It usually occurs bilaterally, and does not seem to be in association with obesity. Computer tomography and magnetic resonance image of the orbit show the mass contiguous to intraconal fat. Partial excision with careful hemostasis is sufficient for treatment.
Hemostasis
;
Humans
;
Male
;
Middle Aged
;
Obesity
;
Orbit*
;
Prolapse*
7.Clinical Study of Pulmonary Tuberculosis for Admitted Patients at National Masan Tuberculosis Hospital.
Seung Kyu PARK ; In Hwan CHOI ; Chul Min KIM ; Cheon Tae KIM ; Sun Dae SONG
Tuberculosis and Respiratory Diseases 1997;44(2):241-250
OBJECTIVE: Although the prevalence of pulmonary tuberculosis has decreased progressively after the national control program for tuberculosis began, nowadays the number of MDRTB is increasing seriously. MDRTB tends to be poor responsive to current antituberculosis regimens. It is mainly due to poor compliance, high rate of side reaction of secondary drugs, and limitation in number of available drugs. The purpose of present study is to evaluate the clinical features of pulmonary tuberculosis patients admitted in one national tuberculosis hospital and to expose the problems pertaining to current remedies, to increase the treatment efficacy for pulmonary tuberculosis including MDRTB in the end. METHOD: Retrospective analysis of 336 pulmonary tuberculosis patients admitted in National Masan Tuberculosis Hospital was done. Contents of analysis were patients profile, the first diagnosed time and medical institutes, family history, residence, previous treatment history, chief complaints at the time of admission, lesion site on chest X-ray film, combined deseases, side reaction to antibuberculosis drugs, used drugs before admission and the results of drug sensitivity test. RESULTS: The ratio between male and female was 4:1. Age showed relatively even distribution from 3rd to 6 th decades. 64.6% of the patients was diagnosed at public health center. Weight loss was the most common complaint at admission. Bilateral lesions on chest X-ray films were 59.8%. 1 30patients had combined desease, of which DM was the most common(37.7%). 95patients had family history, of which parents were the most common(41.7%). According to the time of first diagnosis, 31 patients were diagnosed before 1980, and after then the number of patients was increased by degrees Residence overwhelmed in pusan and gyung-nam province. 258 patients got previous treatment history, of which 112 patients(43.4%) had more than 3 times and only 133 patients(51.6%) got regular medication. 97 patients used more than other 3 drugs in addition to INH, EMB, RFP and PZA before admission. 154 patients were informed with the results of drug sensitivity test. of which 77 patients had resistance to more than 5 drugs. Gastrointestinal problem was the most common in side reaction to drugs. CONCLUSION: In the case of weigt loss of unknown cause, tuberculosis should be suspected. In first treatment, sufficient and satisfactory explanation for tuberculosis is necessary and treatment period should not be stict to 6 month-short term therapy. In retreatment, new drugs should not be added to used drugs enen though drug sensitivity restlts show sensitivity to some of them. Proper time for surgical intervention should not be delayed.
Academies and Institutes
;
Busan
;
Compliance
;
Diagnosis
;
Drug Resistance
;
Female
;
Hospitals, Chronic Disease*
;
Humans
;
Male
;
Parents
;
Prevalence
;
Public Health
;
Retreatment
;
Retrospective Studies
;
Thorax
;
Treatment Outcome
;
Tuberculosis*
;
Tuberculosis, Pulmonary*
;
Weight Loss
;
X-Ray Film
8.A Case of Targetoid Hemosiderotic Hemangioma.
Jong Rok LEE ; Si Won LEE ; Gwang Seong CHOI ; Seung Chul LEE ; Young Keun KIM
Annals of Dermatology 2001;13(4):228-231
Targetoid hemosiderotic hemangioma is a benign vascular tumor with a peculiar clinical presentation and histologic features sometimes difficult to differentiate from the patch stage of Kaposi's sarcoma, progressive lymphangioma, eosinophilic hemangioma, retiform hemangioendothelioma. We report a case of targetoid hemosiderotic hemangioma on upper back and right upper arm of a 28-year-old male. He has a 5mm × 5mm sized slightly raised violaceous papule surrounded by an ecchymotic halo on upper back and right upper arm. We took a biopsy of the lesion and identified it as targetoid hemosiderotic hemangioma. This is a case of targetoid hemosiderotic hemangioma with typical clinical and histopathological findings.
Adult
;
Arm
;
Biopsy
;
Eosinophils
;
Hemangioendothelioma
;
Hemangioma*
;
Humans
;
Lymphangioma
;
Male
;
Sarcoma, Kaposi
9.Production of the monoclonal antibody and the genomic library of helicobacter pylori.
Kwang Ho RHEE ; Woo Kon LEE ; Seung Chul BAIK ; Myung Je CHO ; Hyu Jin CHOI
Journal of the Korean Society for Microbiology 1991;26(4):305-316
No abstract available.
Genomic Library*
;
Helicobacter pylori*
;
Helicobacter*
10.A Case of Myxoid Malignant Fibrous Histiocytoma.
Seung Yong KIM ; Dong Sik SHIN ; Byoung Soo CHUNG ; Kyu Chul CHOI
Korean Journal of Dermatology 1990;28(1):94-98
Malignant fibrous histiocytoma is the most common soft tissue sarcoma in adult life and shows a mixed proliferation of both fibroblsstic & histiocytic cells. We report a case of myxoid malignant fibrous histiocytoma involving right lower leg in a 68-year-old male patient, who presented with a childs palm-sized nodular mass of 3 years duration. Histoapthologically, the tumor had varying proportion of myxoid cellular components. The myxoid areas showed spindle and pleomorphic cells arranged in a vague storiform pattern, abrupt transition between a solidly cellular area and a myxoid area, and lipoblast-like cells. The cellular areas showed spindle cells arranged in a storiform pattern characteritic of the typical pleomorphic malignant fibrous histiocytorna.
Adult
;
Aged
;
Child
;
Histiocytoma, Malignant Fibrous*
;
Humans
;
Leg
;
Male
;
Sarcoma