1.A Case of Intavascular Papillary Endothelial Hyperplasia on Dorsum of Tongue.
Seung Kyung HANN ; Moo Yon CHO ; Seung Hun LEE ; Sung Ku AN
Korean Journal of Dermatology 1987;25(5):692-695
Intravascular papillary endothelial hyperplasia is a benign solitary turnor that may be histologically misdiagnosed as angiosarcoma. We present herein a case of intravascular papillary endothelial hyperplasia occuring in 40-year-old female who hsd a slowly growing tumor on the tongue for 3 years. the histopathologic findings revealed. papillary endothelial hyperplasia in blood vessel accompanied with thrombi.
Adult
;
Blood Vessels
;
Female
;
Hemangiosarcoma
;
Humans
;
Hyperplasia*
;
Tongue*
2.Two Cases of Keratosis Palmaris et Plantaris.
Seung Hun LEE ; Min Geol LEE ; Moo Yon CHO ; Hyung Joo KIM ; Won Soo LEE
Korean Journal of Dermatology 1988;26(3):419-425
We reviewed two cases of keratosis punctata palmaris et plantaris(KPP) and the scanning electron microscopic findings(SEM). The skin lesions of KPP are multiple, hyperkeratotic on the palms and soles with central pitting. There was no subjective symptoms. The histologic findigs revea,l marked hyperkeratosis, hypergranulosis, and acanthosis with depression of the underlying malpighian layers. The SEM findings reveal one hyperkeratoic plug on punctate lesion(case I ) and three hyperkeratotic plugs on depression of the malpighian layer(case ll ).
Depression
;
Keratoderma, Palmoplantar*
;
Keratosis*
;
Skin
3.Epidemiologic Findings of Behcet's Syndrome.
Moo Yon CHO ; Seung Hun LEE ; Dong Sik BANG ; Sung Nack LEE
Korean Journal of Dermatology 1988;26(3):320-329
For the purpose of epidemiologic study, the patients who visited Severance Hospital Behcet's Syndrome Specialty Clinic were grouped by Shimizu classification into the complete, incomplete, suspected types and evaluated. The results of the evaluation with respect to personal characteristics, geographic distribution, socioeconomic characteristics, family history, and clinical characteristics are as follows. 1. The incidence among the subgroups was incomplete type(46.3%), suspected type(36.7%), complete type(17.0%) and the male to female ratio was 0.60: 1, and the average age of onset was 29.1. years for males and 27.6 years for females. 2. The occupational distribution among males included office workers, 31.5%; drivers, 10.6% and among females was office workers, 6.7%; teachers, 3. 7 %; unemployed, 81.7%. 3. Among the presumed aggrevating factors affecting oral cavity, recurrent tonsillitis(20.8%) was most common, and premenstrual exacervation(12.8%) was most common. 4. The most common initial major manifestation was oral ulcer(80.6%), and the longest duration of major manifestations was oral ulcer(average 6.4 years), and the most frequent relapse of major manifestations was oral ulcer(average 14.6 times/year). 5. The average duration between the appearance of the first and second major manifestations was 5.2 years for complete type, 6.3 years for incomplete type, and 6.6 years for suspected type. 6. Combinations of major manifestations most commonly included oral ulcer, genital ulcers and skin lesions(65.3%) for incomplete type, and oral ulcer, skin lesion(54.8%) for suspected type.
Age of Onset
;
Behcet Syndrome*
;
Classification
;
Epidemiologic Studies
;
Family Characteristics
;
Female
;
Humans
;
Incidence
;
Male
;
Mouth
;
Oral Ulcer
;
Recurrence
;
Skin
;
Ulcer
4.The effect on the recovery of epidermal langerhans cells in C3H mice after single and fractionated exposure of ultraviolet B irradiation.
Sang Wahn KOO ; Seung Kyung HANN ; Yoon Kee PARK ; Moo Yon CHO
Korean Journal of Dermatology 1991;29(4):459-465
No abstract available.
Animals
;
Langerhans Cells*
;
Mice
;
Mice, Inbred C3H*
5.Study on the Recovery of Epidermal Langerhans Cells in C3H Mice after UVA Irradiation.
Yoon Kee PARK ; Soo Min KIM ; Seung Kyung HANN ; Moo Yon CHO
Korean Journal of Dermatology 1990;28(3):261-268
This study was undertaken to investigate the recovery of epidermal Langerhans cells in relation to time after UVA irradiation through different amounts and ways of exposure in CH mice. We irradiated the ears of C2H mice with UVA 200J/cm2 and 400J/cm2 in a single dose at one time or 5 fractionated doses for 5 days and performed biopsies on the ears of the control and experimental groups after 2, 7, 14, 21days of irradiation and stained them with immunoperoxidase method. The results are summarized as follows, l. We observed a significant decrease in the number of the Ia-positive epidermal Langerhans cells in the single-dose-exposed group compared to the fractionated- dose-exposed group on 7th and 14th days irradiated with UVA 200J/cm. 2. There was no significant difference in the change in the number of the Ia- positive epidermal Langerhans cells until 21 days of exposure between the single- dose-exposed group and the fractionated-dose-exposed group irradiated with UVA 400 J/cm 3. In the group irradiated with UVA 2003/cm, the reduced number of the Ia-positive epidermal Langerhans cells returned to normal on the 14th day after irradiation in the fractionated-dose-exposed group and on the 21st day in the single- dose-exposed group. In the group irradiated with 400J/cm, the number returned to normal on the 21st day of irradition both in the fractionated-dose-exposed group and in the single-dose-exposed group.
Animals
;
Biopsy
;
Ear
;
Langerhans Cells*
;
Mice
;
Mice, Inbred C3H*
6.Health Care Utilization and Its Determinants among Island Inhabitants.
Seung Hum YU ; Woo Hyun CHO ; Chong Yon PARK ; Myung Keun LEE
Korean Journal of Preventive Medicine 1987;20(2):287-300
Island regions suffer from a shortage of health care in part because they are less developed, they cover a widespread area relative to the population, and due to transportation barriers. The purpose of this study was to assess the level of illness and the magnitude of medical care utilization, and to investigate the determinants of utilization in these area. The data were collected by means of a household survey conducted from February 16 to 25, 1987 on 5 islands which were selected in consideration of the size of the population, the distance from the main land, and the distribution of health care facilities. The household response rate was 89.1% (491 of 551 households), and 1971 persons were surveyed. The major findings of this study are as follows: 1) The morbidity rate of the island inhabitants was 27.7% during the two weeks, and 25.5 chronic illnesses and 9.1 acute illnesses per 100 persons, were noted. Differences in the magnitude of illness were statistically significant by sex, age, education, and family size. 2) The magnitude of total ambulatory care utilization was 16.8 visits per 100 persons during the two weeks, which was less than that of other regions; and differences in the magnitude of total ambulatory care were statistically significant by sex, age, education, occupation, and family size. 3) Unmet needs were classified as 56.0% in chronic illnesses and 19.6% in acute illnesses; and differences in unmet needs were statistically significant by sex, age, education, occupation, income, and family size. 4) Statistically significant determinants in medical care utilization included the frequency of acute illness and chronic illness, and income in total utilization; the frequency of chronic illness and acute illness, and medical care insurance in physician visits. 5) According to the results of the path analysis, need factors had the greatest effect on utilization, and predisposing factors had more indirect effects through enabling or need factors than direct effects.
Ambulatory Care
;
Causality
;
Chronic Disease
;
Delivery of Health Care*
;
Education
;
Family Characteristics
;
Humans
;
Insurance
;
Islands
;
Occupations
;
Transportation
7.Studies on the Effects of Various Topical Phototoxic Drugs and UVA on Melanocytes of C57 BL Mice.
Yoon Kee PARK ; You Chan KIM ; Seung Kyung HANN ; Moo Yon CHO ; Sang Wahn KOO
Annals of Dermatology 1991;3(1):15-22
One hundred sixteen C57 BL mice were painted with either 8-MOP, 5-MOP or TMP solution in concentrations of 0.02%, 0.1%, and 0.5% each and UVA irradiated. Skin biopsies were performed at 1, 3, 5 and 7 weeks after LJVA irradiation. The results measuring the number, area, and perimeter of the melanocytes after topical PLJVA were higher in the TMP-painted group than in the 8-MOP or 5-MOP painted groups. In all groups, the weekly changes showed an increasing value through five weeks. In comparing the drug concentrations used, 0.1% of chemicals produced the same or higher values than 0.5%. There have been few studies on the effects of 5-MOP in photochemotherapy. In tho study 5-MOP produced a pigment-producing effect similar to 8-MOP. Therefore, if topical PIJVA with 5-MOP is used in clinical practice, we could expect a significant therapeutic effect in vitiligo.
Animals
;
Biopsy
;
Melanocytes*
;
Methoxsalen
;
Mice*
;
Paint
;
Photochemotherapy
;
Skin
;
Thymidine Monophosphate
;
Vitiligo
8.Acupuncture needles in the abdominal organs: features on plain radiography, US and CT.
Seung Yon BAEK ; Moon Gyu LEE ; Hye Young CHOI ; Kyoung Sik CHO ; Yong Ho AUH
Journal of the Korean Radiological Society 1992;28(4):589-592
Acupuncture with gold needle insertion is utilized in Oriental medicine, and the effect of therapy is represented by anti-inflammatory and analgesic function, But sometimes the needle is erroneously inserted into abdominal organs, and then it may cause dangerous complications. We report a case of multiple gold needles in the abdominal organs without having definete clinical symptoms.
Acupuncture*
;
Medicine, East Asian Traditional
;
Needles*
;
Radiography*
9.The skin concentration and minimal phototoxic dose following administration of phototoxic drugs as a function of time.
Yoon Kee PARK ; Moo Yon CHO ; Seung Kyung HANN ; Sungbin IM
Korean Journal of Dermatology 1991;29(5):588-601
No abstract available.
Skin*
10.Quantative Analysis of Mitral Valvular Calcification in Mitral Stenosis.
Si Hoon PARK ; Namsik CHUNG ; Seung Yon CHO ; Dong Hwan SHIN ; Sun Il KIM
Korean Circulation Journal 1994;24(1):38-52
BACKGROUND: Conventional echocardiography provides fundamental information about mitral valve morphology and function but is often subjective and has a relatively low specificity in evaluating valve calcific deposit, which is critical information for the preoperative decision. We hypothesized that mitral valvular calcification could be detected in standard two-dimensional echocardiograms of mitral valve in vivo by evaluating regional gray level(echo amplitude) using computerized image analysis so that we could overcome the subjectivity and low specificity of conventional echocardiography. METHODS: We tested this hypothesis by performing standard 2.5MHz two-dimensional echoes on mitral valve and myocardium in 30 patients with mitral stenosis, scheduled to undergo mitral valve replacement. We compared gray level of each region of interest in mitral valve and myocardium in stop-frame images with the degree of calcifications identified by pathologic and radiographic examinations. RESULTS: Ratio of mean gray level of mitral valve to mean gray level of myocardium was the most reliable value in evaluating degree of calcification. Quantitatively, region of calcification displayed the ratio of significantly higher value than that of no calcification. In case of anterior mitral valve, the ratio of the evident calcified region was greater than 3.11, that of the region without calcification was less than 2.42 and that of microcalcification was betwwn 2.42 and 3.11. For posterior mitral valve, the ratio of the evident calcified region was greater than 3.50, that of the region without calcification was less than 2.19 and that of microcalcification was between 2.19 and 3.50. The sensitivity and specificity of this method for assessment of degree of calcification was 75% and 100% for anterior mitral valve and 9% and 87.5% for posterior mitral valve. CONCLUSION: Mitral valvular calcification could be detected quantitatively in standard two dimensional echocardiograms of mitral valve in vivo by evaluating regional gray level(echo amplitude) using computerized image analysis.
Echocardiography
;
Humans
;
Mitral Valve
;
Mitral Valve Stenosis*
;
Myocardium
;
Sensitivity and Specificity