1.Pulmonary Adenocarcinoma of Fetal Type: Report of a case.
Korean Journal of Pathology 1990;24(3):287-293
Pulmonary adenocarcinoma of fetal type is a very uncommon tumor of the lung which simulates an early stage of lung differentiation. This is a primitive appearing epithelial tumor similar to the epithelial component of pulmonary blastoma but lacking the sarcomatous features. Since the report of Kradin et al, 8 more cases have been reported by a variety of name. These tumors are composed of glycogen-rich, non-ciliated tubular epithelial cells forming irregularly shaped tubules or arranged in a papillary pattern. A very remarkable findings of this tumor is the presence of endocrine cells which is confirmed by argyrophilia, immunohistochemistry or electron microscopy. We experienced a case of this tumor which showed hepatocytoid differentiation in addition to the characteristic histologic findings. Immunohistochemical studies performed on a resected tumor tissue showed immunoreactivity for alpha-fetoprotein, neuron-specific enolase and somatostatin, and endocrine type granules were found ultrastructurally. Although this tumor seems to have a relation with pulmonary blastoma in its histology, immunohistochemistry and ontogeny, a distinction between these should be attained because the average survival of the former group is longer as 23 months, while that of the latter is only 4 months.
Adenocarcinoma
2.In Vitro antifungal Activities of Imidazole Derivatives.
Hong Sang CHIN ; Kwang Hoon LEE ; Chung Koo CHO
Korean Journal of Dermatology 1984;22(2):196-205
The present study was designed to obtain omparative data on in vitro antifungal activities of imidazole derivatives. Minimum inhibitory oncentrations of clotrimazole, miconazole, econazole, ketoconazlole and griseofulvin on 4 strains of Trichophyton mentagrophytes, 3 strains of Trichophyton rubrum, 2 strains of Microsporum canis and ] strain of Sporothriv: schenckii were etermined after 3 week' incubation at room temperature on Sabouraud's dextrose liquid media. In addition, the fungicidal activities of miconazole and econazole were tested against Z'richophyton mentagrophytes and Microsporum canis, using the techniques described by Vanbreuseghern(1967) The results are summarzed as follows: ] In most of the dermatophytes studied, 1 to 10 pg/ml of M1C were detected. Diverse susceptibility pattern was observed among different fungal species, but no or minor variability was noted within the same species. The susceptibility of Z'ri- chophyton rubrum showed at MIC of 0. 01 to 10 pg/ml, T ichophyton mentagro- phyt.es and Mic osporum canis at 0.1 to 10 pg/ml and 0. 1 to 1000 gg/ml respec- tively. The Trichophyton rubrum was the most sensitive. In the susceptibility test of Sporothrix schenckii, the high resistance to clotrimazole and griseofuhin was observed. The fungistatic activities of miconazole, econazole and ketoconazole were observed only at concentrations higher than JpQ pg/ml.
Arthrodermataceae
;
Clotrimazole
;
Econazole
;
Glucose
;
Griseofulvin
;
Ketoconazole
;
Miconazole
;
Microsporum
;
Sporothrix
;
Trichophyton
3.A Case of CREST Syndrome.
Kwang Iee HONG ; Tae Hoon CHO ; Eil Soo LEE
Korean Journal of Dermatology 1989;27(4):430-434
No abstract available.
CREST Syndrome*
;
Nifedipine
4.A Case of Pruritic urticarial Papules and Plaques of Pregnancy.
Kwang Lee HONG ; Tae Hoon CHO ; Eil Soo LEE
Korean Journal of Dermatology 1989;27(4):421-424
We report. herein a case of pruritic urticatial papules and plaques of pregnancy in a Z8-year-old primigravida. She had the urticarial papules and plaques on the abdomen and thighs, which developed at 30th week of pregnancy. She was treated with topical fluorinated steroid and chlorpheniramine, 6mg/ day. The itching sensation was relieved within 24 hours after the therapy and the skin lesions resolved after delivery.
Abdomen
;
Chlorpheniramine
;
Pregnancy*
;
Pruritus
;
Sensation
;
Skin
;
Thigh
5.Two cases of meperidine induced localized hypersensitivity skin reaction.
Hong Suk KIM ; Cho Heun JUNG ; Kwang Hoon LEE
Journal of Asthma, Allergy and Clinical Immunology 2000;20(1):130-134
No abstract available.
Hypersensitivity*
;
Meperidine*
;
Skin*
6.Clinical Survey of Perinatal Mortality in Multiple Pregnancy.
Hoon KOOK ; Dong Hun CHO ; Hwa Il KWANG ; Kwang Ok LEE ; Young Youn CHOI
Journal of the Korean Pediatric Society 1989;32(3):321-330
No abstract available.
Female
;
Perinatal Mortality*
;
Pregnancy
;
Pregnancy, Multiple*
7.Arch-First Technique in Aortic Arch Aneurysm.
Kwang Hoon PARK ; Seok Cheol CHOI ; Kang Joo CHOI ; Yang Haeng LEE ; Yoon Ho HWANG ; Kwang Hyun CHO
The Korean Journal of Thoracic and Cardiovascular Surgery 2000;33(8):676-680
To minimize the period of brain ischemia and the potential for neurologic damage during aortic arch replacement, we used the arch-first technique. First case was a 28-year-old female with extensive aneurysm involving ascending, arch and descending thoracic aorta. Exposure was obtained via a bilateral via a bilateral thoracotomy (clamshell incision) in the anterior 4th right and 3rd left intercostal space with oblique sternotomy. To prepare for arch perfusion, the side-arm graft(10mm) was anastomosed to the aortic graft, opposite the site of the planned anastomosis to the arch vessels. After completing the arch anastomosis under total circulatory arrest(37min) and retrograde cerebral perfusion(12min), aortic graft was clamped on either side and the arch was perfused via side-arm graft for 36min. When distal aortic anastomosis was finished, distal clamp of aortic graft was released and arch vessels were perfused via common femoral artery, and the proximal aortic anastomosis was accomplished. The patient was discharged with no event. Second case was a 48-year-old male with extensive aneurysm involving ascending, arch, and aortic regurgitaiton(grade III/IV). This case was also done using the clamshell incision. Aortic valve replacement was done by valved-conduit(Vascutek 30mm), both coronary artery anastomosis using Cabrol's procedure. Last operation procedure was the same as the 1st case.
Adult
;
Aneurysm*
;
Aorta, Thoracic*
;
Aortic Valve
;
Brain Ischemia
;
Coronary Vessels
;
Female
;
Femoral Artery
;
Humans
;
Male
;
Middle Aged
;
Perfusion
;
Sternotomy
;
Thoracotomy
;
Transplants
8.Immunohistochemical Staining in Metastatic Skin Cancer.
Yoo Shin LEE ; Kwang Hyun CHO ; Seon Hoon KIM ; Chul Woo KIM
Korean Journal of Dermatology 1987;25(4):427-434
Immunohistochemial staining was performed in metastatic skin cancer using a variety of antistera. Both carcinoembrytonic antigen(CEA) and epithelial membrane antigen(EMA) were demonstrated in large cell carcinoma of the lung, adenocarcinoma of the stomach and skin adnexal cancer with eccrine differentiation. Although papillary carcinoma of the thyroid, squamous cell carcinoma of the skin and squamous cell carcinoma of the lung showed positive staining for CEA and EMA, these were weak or focal reactions in the keratinizing area. In rectal adenocarcinoma, staining for CEA was significantly positive, but staining for EMA was negative. Epiderrnal cytokeratin was observed in squamous cell carcinoma of the lung, squamous cell carcinoma of the skin and skin adnexal cancer with eccrine differentiation. Epidermal cytokeratin was also demonstrated in well differentiated adenocarcinoma of the gastrointestinal tract. By using a variety of tumor markers, the authors tried to locate possible primary sites in six metastatic skin cancers of unknown origin.
Adenocarcinoma
;
Carcinoma, Large Cell
;
Carcinoma, Papillary
;
Carcinoma, Squamous Cell
;
Gastrointestinal Tract
;
Keratins
;
Lung
;
Membranes
;
Skin Neoplasms*
;
Skin*
;
Stomach
;
Thyroid Gland
;
Biomarkers, Tumor
9.A Case of Pityriasis Lichenoides et Varioliformis Acuta.
Chong Seong LEE ; Tae Hoon CHO ; Kwang Joong KIM ; Eil Soo LEE
Korean Journal of Dermatology 1985;23(2):218-223
We report herein a case of pityriasis lichenoides et variloiformis acuta in a 48- year-old man, who has wide spread erythematous macule, papule, vesicle, hemorrhagic vesicle and reddish-brown crust on the neck, trunk, axillae and both extremities. He was treated successfully with tetracycline 2. 0 gm a day for 4 weeks.
Axilla
;
Extremities
;
Neck
;
Pityriasis Lichenoides*
;
Pityriasis*
;
Tetracycline
10.Purification of treponema pallidum from rabbit testicular tissue.
Min Geol LEE ; Sung Whan CHO ; Kwang Hoon LEE ; Jung Bock LEE
Korean Journal of Dermatology 1991;29(1):56-64
There are several different methods of purifying Treponema pallidum(TP) from rabbit testicular tissue. Among them, we compared the use of differential centrifugation, which has been most widely used, to Percoll density gradient centrifugatian, a newly applied method, in purifying TP from rabbit testicular tissue by checking the protein concentration of the TP suspension, hemagglutination assay using sheep erythrocytes sensitized by TP, IgM-TP-enzyme-linked immunosorhent, assay(IgM-TP-ELISA) and eJect,ron microscopic observation. The protein concent,ration af TP antigen suspension (2x10(8)TP/ml) purified by Percoll density gradient centrifugation (lower band) was the lowest (129.0pg/ml) when compared to those purified by differential centrifugation (324.0pg/ml) and Percoll density gradient centrifugatian (upper band) (560.2pg/ml). Sheep erythrocytes sensitized by TP purified by Percoll density gradient centrifugation(lower band) showed the same resiilts as those using a commercii1 TPHA kit when tested with positive and negative control sera. The sensitivity and specificity of the IgM-TP-ELISA were 88.5%(23/26') and 86.4%(19/2Z) respectively using TP as an antigen purified by differential centrifugation. The rates were 96.29% (25/26) and 95.5%(2l/22) using TP purified by Percoll density gradient centrifugation. As shown by the electron microscopy, T. pizllida purified by clifferential centritugation and Percoll density gradient centrifugatiori were structurally unaltered, and Percoll-purified TP contained much less tissue debris than TP prepared by differ ential centrifugation. Therefor e, Percoll density gradient centrifugation is considered to be a better method of purifying TP from rabbit testicular tissue when compared to differential centrifugatian, as a matter of fact, Perrol1 density gradient centrifugation has been applieci successfully in the study of the physiology, recombinant DNA techniques, and antigenic structure of TP and to the preparation of the antigen for the FTA-ARS and TP-ELISA
Centrifugation
;
Centrifugation, Density Gradient
;
DNA, Recombinant
;
Erythrocytes
;
Hemagglutination
;
Microscopy, Electron
;
Physiology
;
Sensitivity and Specificity
;
Sheep
;
Treponema pallidum*
;
Treponema*