During The last 11 years from Jan. 1980 to Dec. 1990, 72 cases of salmonellosis has been admitted to the Department of Pediatrics of National Medical Center and evaluated clinical difference between typhoid fever and salmonella gastroenteritis. The results were as follows: 1) The annual incidence of salmonella gastroenteritis insalmonellosis was increased in the latter half of the eighties. 2) Both salmonellosis had its peak incidence in the summer. 3) Salmonella gastroenteritis was highest in the age of less than 5 year in contrast with the age of 6~9 year in typhoid fever. 4) The specimens isolated salmonellae were blood and stool in most cases, especially blood in typhoid fever and stool in gastroenteritis. 5) S.typhi was 16 cases, salmonella group A was 3 cases, group B was 16 cases and Group D and E were a case in each in isolated salmonellae. 6) On the antibiotic sensitivity test, S.typhi was sensitive to the most antibiotics. but the salmonella group B was relatively resisitant to Ampicillin, Carbenicillin, Tetracycline and Chloramphenicol.
Ampicillin ; Anti-Bacterial Agents ; Carbenicillin ; Chloramphenicol ; Gastroenteritis ; Incidence ; Pediatrics ; Salmonella ; Salmonella Infections* ; Tetracycline ; Typhoid Fever

No abstract available.

A female newborn had the following characteristics; a congenital localized absence of skin over the lower extremities; blistering of the skin or mucous membrane, incited by trauma, which heals without scarring; and congenital absence or deformity of the nails. In respect to the characteristic manifestation, clinical course and electron microscopic features, our patient seems to fit well into Bart's syndrome. The inheritance pattern appears to be autosomal dominant but, as in this report, isolated cases have been recognized. As the review of the literatures, congenital localized absence of skin has been observed in various subsets of inherited E.B. But, we believe that the term Bart's syndrome should be used to identify patients with good prognosis as the Bart's initial description To the best of our knowedge, this is the first reported case of Bart's syndrome in the korean literature.
Blister ; Cicatrix ; Congenital Abnormalities ; Female ; Humans ; Infant, Newborn ; Inheritance Patterns ; Lower Extremity ; Mucous Membrane ; Prognosis ; Skin

No abstract available.
Hepatitis, Chronic* ; Interferon-alpha* ; Killer Cells, Natural* ; Prednisolone*

PURPOSE: Medical education is perceived as being very stressful, which leads to declines in subjective well-being in medical students. Therefore, student counseling is becoming an exigent issue. The goal of this study was to investigate the academic difficulties and subjective well-being of medical students to identify their needs with regard to counseling. In addition, we analyzed help-seeking behaviors of students to develop an effective counseling program. METHODS: We performed a survey (n=205) to determine the extent to which medical students encounter academic difficulties in their lives in medical school and how they attempt to resolve their problems. In addition, we used the Oxford Happiness Scale to examine the relationships between academic performance, previous help-seeking behavior, and happiness in medical students. RESULTS: Of various types of problems, 62% of medical students perceived learning difficulties to be the most serious issue in medical school. Despite encountering difficulties, more than 67% of students failed to seek help from faculty or their fellow students. There was a significant relationship between happiness score and previous help-seeking behavior. A lack of perceived seriousness was identified as the most significant barrier to seeking help. CONCLUSION: Access to counseling programs must be improved for students with apparent academic difficulties who do not seek counseling. Through such programs, students can learn and practice methods of coping with their difficulties and develop medical and professional competence.
Counseling ; Education, Medical ; Happiness ; Humans ; Learning ; Learning Disorders ; Professional Competence ; Schools, Medical ; Students, Medical

A 7 day old female baby suffered from perinatal asphyxia and trauma at birth. Subsequently, she had a violeceous subcutaneous plaque on back. The clinical setting, the skin manifestation and the histologic findings of the lesion were diagnostic of subcutaneous fat necrosis of the newborn. Histologic findings revealed fat necrosis with infiltration of inflammatory cells, foreign body giant cells and several fat cells contain needle shaped cleft in radial arrangement. Four weeks latter, the skin lesion was healed spontaneously.
Adipocytes ; Asphyxia ; Fat Necrosis ; Female ; Giant Cells, Foreign-Body ; Humans ; Infant, Newborn* ; Necrosis* ; Needles ; Parturition ; Skin ; Skin Manifestations ; Subcutaneous Fat*

Synovial sarcoma is a distinct and generally recognized soft tissue tumor that it’s origin still raises controversy. The synovial origin of synovial sarcoma has not been determined despite the accepted terminology implying synovium as stem cell. Three cases of primary synovial sarcoma (2 fibrous monophasic, 1 biphasic type) were studied with a panel of antibodies against different types of cytokeratin and other markers (EMA, CEA, vimentin, S-100 protein, lysozyme, 1-antichymotrypsin). Spindle shaped-cell in monophasic synovial sarcoma showed reactivity for CK7 and pancytokeratin. Epithelial cells lining of glands in biphasic synovial sarcoma reactive for CK7, pancytokeratin, EMA, and focally CEA but spindle cells only positive for vimentin. By electron microscopy, fibrous monophasic synovial sarcoma showed pseudogland formation with intercellular junctions of paired subplasmalemmal destiny and discontinuous basal lamina. These results indicate that synovial sarcoma showes epithelial differentiation. We believe that synovial sarcoma arises in pluripotential connective tissue cells that is able to be differentiated into both mesenchymal and epithelial components. So, synovial sarcoma have been considered carcinosarcoma of soft tissues depending on the type of differentiation.
Antibodies ; Basement Membrane ; Carcinosarcoma ; Connective Tissue Cells ; Epithelial Cells ; Immunohistochemistry ; Intercellular Junctions ; Keratins ; Microscopy, Electron ; Muramidase ; S100 Proteins ; Sarcoma, Synovial ; Stem Cells ; Synovial Membrane ; Vimentin

No abstract available.
Child* ; Humans ; Neurilemmoma* ; Neurofibromatosis 1

Bipotent progenitors for T and natural killer (NK) lymphocytes are thought to exist among early precursor thymocytes or liver lymphocytes. The identification of such a progenitor population or mature NK cells in such organs remains undefined. Here we report the identification of a novel receptor of NK cells, p58 (HLA class I-specific inhibitory receptors), in fetal thymocytes and fetal liver lymphocytes. Our finding suggests the NK cells mature in the developmental stage during feta1 ontogeny. Flow cytometric analysis revealed p58 positive cells in thymocytes or in fetal liver lymphocytes and reverse transcription PCR also showed amplification of p58 RNA. The result of single stranded conformational polymorphism (SSCP) showed it discriminates one or two base pair differences of the p58 gene. Although the question still remains as to whether the expression of p58 is due to the NK cells or natural T cells, it is clear the p58 is expressed in fetal thymocytes or liver lymphocytes. And SSCP analysis using appropriate sets of primers used in this study, is helpful to study the diversity of p58.
Base Pairing ; Killer Cells, Natural ; Liver* ; Lymphocytes* ; Polymerase Chain Reaction ; Polymorphism, Single-Stranded Conformational ; Reverse Transcription ; RNA ; T-Lymphocytes ; Thymocytes*

Diagnosis of a thymic carcinoid was made on transthoracic fine needle aspiration in a 36-year old woman who had an anterior mediastinal mass on chest X-ray and CT scan. The aspiration smears showed numerous anastomosing ribbons and cords of small round tumor cells. The tumor cells had slightly eccentric nuclei and some granular cytoplasm. The small and uniform nuclei of the tumor cells had finely granular chromatin and thin nuclear membrane. The cytologic diagnosis of a carcinoid was confirmed on histopathologic, immunohistochemical, and electromicroscopic examination of surgical specimen.
Adult ; Alleles* ; Biopsy, Fine-Needle ; Carcinoid Tumor ; Carotid Body ; Child* ; Chromatin ; Cytoplasm ; Diagnosis ; Female ; Humans ; Immunoglobulin A* ; Nuclear Envelope ; Paraganglioma ; Thorax ; Tomography, X-Ray Computed