We report a case of anosacral cutaneous amyloidosis in a 74 year-old-man. The skin finding is a patch of the size of a childs palm on the sacral area, consisting of brownish macular lines that radiate frorn the anus. Histopathology revealed defiosits of homogenous eosinophilic mateial s in the papillary dermis. Congo red staining and dylon staining was positive. Immuohistochemical staining using anti SAP antibodies and anti-keratin antibodies showed positive reactions.
Amyloidosis* ; Anal Canal ; Antibodies ; Child ; Congo Red ; Dermis ; Eosinophils ; Humans ; Skin

We have studied morphologic characteristics and apoptosis on the fetal brain of the trisomy 16 mouse, a model for human trisomy 21 syndrome. This study was based on serial sections of the whole brain from a sample of sixteen trisomy 16 mice and forty-six age-matched control littermates from embryonic day (ED) 12 to ED 18. Trisomy 16 brains showed a reduction of telencephalic size and abnormal cortical development. At ED 13 trisomy 16 and control brains appeared similar. By ED 14 difference in the cortical thickness and telencephalic growth became evident, and by ED 16 a marked size difference had developed between the trisomy 16 and control brains. By ED 18, however, the thickness of the trisomy 16 cortex had increased considerably and was not significantly different with respect to the thickness and cross-sectional areas of the pallium and its constituent cortical layers. The cell density of the trisomy 16 cortex had persistently decreased before ED 17, when the cell density of control and trisomy 16 corteces was similar within each layer. At ED 18 cell density of trisomy 16 cortex in each layer increased. There was inverse relationship between a number of TUNEL positive apoptotic cells and cell density in the trisomy 16 brains. Our results suggest that developmental abnormalities of the trisomy 16 brain indicated developmental delay of the telencephalon growth, which may be caused by apoptosis rather than by a proliferation defect.
Animals ; Apoptosis* ; Brain* ; Cell Count ; Down Syndrome ; Humans ; In Situ Nick-End Labeling ; Mice* ; Telencephalon ; Trisomy*

BACKGROUND: The purpose of this study was to analyze the relationships between cardiorespiratory fitness and body mass index (BMI), metabolic syndrome risk factors, homeostasis model assessment-insulin resistance (HOMA-IR), and high sensitivity C-reactive protein (hsCRP) in male high school students in Korea. Furthermore, the effects of the cardiorespiratory fitness levels on these four factors were examined. METHODS: The level of cardiorespiratory fitness, BMI, percent body fat, waist circumference (WC), systolic blood pressure, glucose, triglycerides (TG), high-density lipoprotein-cholesterol (HDL-C), HOMA-IR, and hsCRP of 227 male high school students were measured. Analyses of multiple correlation and simple regression were applied. RESULTS: The results showed that the level of cardiorespiratory fitness correlated negatively with BMI, percent body fat, WC, TG, and HDL-C, in addition to HOMA-IR and hsCRP, and strongly influenced BMI, percent body fat, WC, TG, HDL-C, HOMA-IR, and hsCRP. Comparative analysis of our subjects showed that higher cardiorespiratory fitness levels had positive effects on BMI, metabolic syndrome risk factors, HOMA-IR, and hsCRP. CONCLUSIONS: This study found that there are close correlations between cardiorespiratory fitness and BMI, metabolic syndrome risk factors, HOMA-IR, and hsCRP. It also showed that, compared to lower levels of cardiorespiratory fitness, higher levels had beneficial effects on BMI, metabolic syndrome risk factors, diabetes, and cardiovascular disease risk factors.
Adipose Tissue ; Adolescent ; Blood Pressure ; Body Mass Index ; C-Reactive Protein ; Cardiovascular Diseases ; Glucose ; Homeostasis ; Humans ; Insulin ; Korea ; Male ; Physical Fitness ; Risk Factors ; Triglycerides ; Waist Circumference

No abstract available.
Neurons*

BACKGROUND: Histologic distinction between various fibrohistiocytic tumors of the skin may sometimes be difficult. Recently, several immunohistochemical markers of "histiocytes and "facultative fibroblasts" have been introduced and used for the study of some fibrohistiocytic tumors of the skin. OBJECTIVE: The purpose of this study is to determine whether immunostatining with MAC 387, antibodies to S-100 protein, factor Xllla(FXllla) and CD 34 allows distinction between various fibrohistiocytic tumors of the skin in formalin-fixed, paraffin-embedded specimens. METHODS: Paraffin-embedded specimens of dermatofibroma, keloid, hypertrophic scar, dermatofibrosarcoma protuberans(DFSP), neurofibroma, and juvenlie xanthogranuloma were investigated with MAC 387, antibodies to S-100 protein, CD 34 and FXllla using avidin-biotin -peroxidase complex method. RESULTS: In all fibrous dermatofibromas (n=26), 20-90% of constituent cells were positive for FXllla. Focal or diffuse CD 34 reactivity was present in DFSP (n=2). Weak reactivity for CD 34 and consistent labeling for S-100 protein were found in neurofibromas (n=5). Tumor cells showed negative for FXllla, CD 34 and S-100 protein in keloids (n=2), hypertrophic scars (n=6), and juvenile xanthogranulomas (n=5). MAC 387 did not label tumor cells of the fibrobistiocytic tumors we have studied. CONCLUSION: Immunostaining of paraffin-embedded specimens with antibodies to S-100 protein, FXllla and CD 34 may be useful in the differential diagnoses of fibrohistiocytic tumors of the skin.
Antibodies ; Cicatrix, Hypertrophic ; Dermatofibrosarcoma ; Diagnosis, Differential ; Histiocytoma, Benign Fibrous ; Keloid ; Methods ; Neurofibroma ; S100 Proteins ; Skin* ; Xanthogranuloma, Juvenile

BACKGROUND: Chronic cutaneous lupus erythematosus(CCLE) is a well-known disease entity. But there has been no data about its clinical behavior and histopathologic features in Korea. OBJECTIVES: This study was conducted to elucidate the clinical, laboratory, and histopathologic features of CCLE, and the relationship between CCLE and SLE. MATERIALS AND METHODS: We investigated 48 cases of CCLE that visited the department of dermatology at the Seoul National University Hospital from January 1990 to June 1997. Medical records and biopsy slides were reviewed.
Biopsy ; Dermatology ; Korea ; Lupus Erythematosus, Cutaneous* ; Medical Records ; Seoul

No abstract available.
Carcinoma, Renal Cell* ; Caveolin 1*

BACKGROUND: Lichen planus is a papulosquarnous disease characterized by pruritic violaceous papules most commonly an the extremities of middle-aged adults. It may or may not be accompanied by oral and genital mucous membrane involvement. Its course is generally self-limited for a period of several months to years, but it may last indefinitely. OBJECTIVE: This study was performed to find the clinical characteristics of lichen planus. METHODS: Thirty-five cases of lichen planus comfirrned clinically and histopathologically were analyzed. RESULTS: The incidenc of lichen planus was 0.073% of the total number of dermatologic patients. The age distribution was in the range of 14-63 years old being most prevalent in the 6th decade and there was ariequal sex ratio. The most common site of involvement was the mucous membrane, and the extremities were more common than the trunk. Pruitus or pain and discomfort developed in 28 pat,ients(80% ). In most cases, the treatment was topical corticosteroid and antihistamine. Sixteen cses improved within 1 month to 2 years. Five cases recurred in the improved cases. CONCLUSION: The clinical analysis of 35 patients with lichen planus was performed. The incidence of lichen planus was 0.073% of the total number of dermatologic patients. Males and females were equally affected Mucous membrane involvement was detected in 21 patients(60%).
Adult ; Age Distribution ; Extremities ; Female ; Humans ; Incidence ; Lichen Planus* ; Lichens* ; Male ; Mucous Membrane ; Sex Ratio

BACKGROUND: There is concem about the rising incidence of skin cancer. However, few articles have reported the change in the clinical and epidemiological aspects of skin cancer. OBJECTIVE: We performed this study in order to clarifiy the recent changes in cutaneous premalignant and malignant lesions. METHODS: A statistical analysis was made using 101 cases of cutaneous premalignant lesions and 205 cases of ma]ignant tumors out of a total number of 20,175 new outpatients that visited the Department of Dermatology at the Seoul National University Hospital during a 6 year period(1990-1995). RESULTS: The frequency of premalignant lesions was 0.50% and that of malignant tumors was 1.02%. The frequency showed an increasing tendency compared to previous reports. In the premalignant lesion cases, actinic keratosis was most common and represented a figure of 82.2%. Among the malignant tumors, basal cell carcinoma was most frequent at 24.4%. Age, sex and anatomical site distribution of basal cell carcinoma, malignant melanoma was no different. The mean age of squamous cell carcinoma was greater than in previous reports and main preceding lesions were actinic keratosis and cheilitis. The frequency of lymphoma was markedly increased but the reason for this remains to be determined. CONCLUSION: Our findings showed the continous increasing incidence of skin cancers and emphasize the need for public eduacation, early diagnosis and proper treatment.
Carcinoma, Basal Cell ; Carcinoma, Squamous Cell ; Cheilitis ; Dermatology ; Early Diagnosis ; Humans ; Incidence ; Keratosis, Actinic ; Lymphoma ; Melanoma ; Outpatients ; Seoul ; Skin Neoplasms ; Statistics as Topic*

No abstract available.
Hemoptysis*