No abstract available.

No abstract available.
Embryonic Development* ; Embryonic Structures* ; Female ; Ovulation* ; Pregnancy

Solitary circumscribed neuroma is a benign nerve sheath tumor of unknown etiology. Clinically, it appears as a long-standing, solitary, asymptomatic, skin-colored papule or papulonodule. It has been found predominantly on the face in both sexes, mostly in middle age. A 53-year-old female patient visited our department because of a nodule on the side of the distal interphalangeal joint of the left second finger. A biopsy specimen showed a well-circumscribed, partially encapsulated tumor composed of interlacing fascicles of spindle cells. Neither pleomorphism nor mitosis was found. Immunohistochemical stainings for vimentin, neuron specific enolase (NSE) and epithelial membrane antigen (EMA) were positive, but negative for S-100 protein and smooth muscle actin (SMA). We herein report an uncommon case of solitary circumscribed neuroma.
Actins ; Biopsy ; Female ; Fingers ; Humans ; Joints ; Middle Aged ; Mitosis ; Mucin-1 ; Muscle, Smooth ; Neuroma* ; Phosphopyruvate Hydratase ; S100 Proteins ; Vimentin

No abstract available.
Adenoma, Pleomorphic*

The epithelioid angiosarcoma is recently described ns a variant of ang-osarcoma based on its pathological feature, which is characterized by the epithelioid or histiocytoid morphology af the malignant tumor cells. The existence of vascular endothelial tumor with an epithelioid feature has been accepted for many years, most notablyn the forms of epithelioid hemangioma and epithelioid hemangioendo thelioma. In recent years, cutaneous angiosarcoma with epitheloid morphology have been reported as a cutaneos epithelioid angiosarcoma in the literatures. A 60-year-old man presente with a mild tender erythematous 2 x 2 x 2.5cm sized soft fluctuating single nodule with dark hemorrhagic crust on the left forehead for 3 months. He had had an abrasion wound on the lesion site of the forehead by an accidental trauma 5 month before the lesion appeared. Histopathological findings revealed that the tumor mass was chiefly composed of solid sheets of poorly differentiated malignant cells with an epithelioid feature. The characteristics of classical angiosarcoma such as primitive vascular spaces and clefts with malignat cells, and proliferating vessels were also found in some areas. The immunohistochemical stain wi.h the factor VIII related antigen ivas focally reactive in the tumor cells. Unfortunately he refused further treatment and expired 7 months after discharge at home without knowing the direct cause of his health. We report herein an interesting and rare case of the cutaneous epitheioid angiosarcoma which had typical clinical and histopathological findings and suggested as a case with a very aggressive course.
Forehead ; Hemangioma ; Hemangiosarcoma* ; Humans ; Middle Aged ; von Willebrand Factor ; Wounds and Injuries

Following the Korean War, the presence of foreign troops in Korea and lowered. sexual morality caused an increase in the rate of prostitution and related venereal diseases. Though the health authorities made efforts to handle these problems, they didnt obtain any noticeable results, because they neglected the scientific prevention and treatment based on expert knowledge, and the sociopsychological problem, which was the basic cause of the increment in the rate of prostitution. They only took administrative action against the prostitutes. Therefore, in July, 1976, we went to a town(named Silver Town) located on the outskirts of a U.S. Air Force base, and, examined and guestioned a number of prostitutes. Each of the 288 subjects residing in the town was given a questionaire that dealt with individual living attitudes, family and social background, and sociopsychological aspects of tbeir lifestyle. Questionaires were completed anonymously. Serological tests for syphilis, the UDRL and TPHA, were also administered. The results of our atudy are as follows. 1) Most of the prostitutes had grown up in large families, in which females were predominant. Because of economic difficulties they dropped out of school a.t an early age and became prostitutes. The average age of a prostitute at the time of her first sexual experience was 19. 9 years, the expriences usually taking place with her first boyfriend. Forty six psrcent of tbe subjects had intercourse for the first time between the ages of 15 and 19. Fortynine & two tenths percent of them because prostitutes within one year of their initial sexual act, and all of them at an average interval of 2.5 years following the first sexual experience, the average age being 22. 4 years. 2) The longer the women had worked as prostitutes, the more they felt dissatisfied with their work, and the more they desired to change to an occupation which was healthier and entailed more self-respect. 3) Out of 283 subjects, 39% had a history of venereal disease, predominantly of gonorrhea. Tbe results of the STS administered to all subjects were,; VDRL 7.7% positive and TPHA 6% positive. It was also concluded that the subjects had no educational or working knowledge of venereal diseases.
Anonyms and Pseudonyms ; Female ; Gonorrhea ; Humans ; Jeollabuk-do* ; Korea ; Korean War ; Life Style ; Morals ; Occupations ; Prostitution ; Serologic Tests ; Sex Workers* ; Sexually Transmitted Diseases ; Silver ; Syphilis*

No abstract available.
Animals ; Lipid Peroxides ; Mice* ; Skin*

OBJECTIVE: In the previous study, we compiled the differentially expressed genes during early folliculogenesis.1 Objective of the present study was to identify downstream target genes of transcription factors (TFs) using bioinformatics for selecting the target TFs among the gene lists for further functional analysis. MATERIALS AND METHODS: By using bioinformatics tools, constituent domains were identified from database searches using Gene Ontology, MGI, and Entrez Gene. Downstream target proteins/genes of each TF were identified from database searches using TF database (TRANSFAC(R) 6.0) and eukaryotic promoter database (EPD). RESULTS: DNA binding and trans-activation domains of all TFs listed previously were identified, and the list of downstream target proteins/genes was obtained from searche of TF database and promoter database. Based on the known function of identified downstream genes and the domains, 3 (HNF4, PPARg, and TBX2) out of 26 TFs were selected for further functional analysis. The genes of wee1-like protein kinase and p21WAF1 (cdk inhibitor) were identified as potential downstream target genes of HNF4 and TBX2, respectively. PPARg, through protein-protein interaction with other protein partners, acts as a transcription regulator of genes of EGFR, p21WAF1, cycD1, p53, and VEGF. Among the selected 3 TFs, further study is in progress for HNF4 and TBX2, since wee1-like protein kinase and cdk inhibitor may involved in regulating maturation promoting factor (MPF) activity during early folliculogenesis. CONCLUSIONS: Approach used in the present study, in silico analysis of downstream target genes, was useful for analyzing list of TFs obtained from high-throughput cDNA microarray study. To verify its binding and functions of the selected TFs in early folliculogenesis, EMSA and further relevant characterizations are under investigation.
Computational Biology ; Computer Simulation* ; DNA ; Gene Ontology ; Maturation-Promoting Factor ; Oligonucleotide Array Sequence Analysis ; Protein Kinases ; Transcription Factors* ; Vascular Endothelial Growth Factor A

A fifty-seven-year-old, faers wife, was affected a skin lesion of dark pigme raised, crusted ulerated, easy to bleed on touching the crust and indurated ur with mood consistancy, and the tumor was located over the inner is of left eye, which was alike to malignant melanoma clinically. The tumor 1-shaped and measure 1.;. m x l. 7cm in diameter, which did not make any itchy sensation. d with small papule about 8 years ago which zdually increased. in siiarate3 with ocsional ble 3ing. Her skin lesion was treateQ with curretation and electrodessication or surgical removement by loca.l practitioner, however, it recured after the each treatments. In this hospital, the peeived the skin biopsy of the tumor and the diagnosis was established as cell car.cinoma histopathologically, and the tumor was removed by ical technique applying transposition skin flap from the infra-orbitale face, and the result was satisfactory without "mcurence until upto bservation (for three years and three months). On the conclusion, ad a case of Solid pigmented basal cell carcin- oma resernbling maligna. with histopathological study and treated with plastic surgical management very satisfying result.
Biopsy ; Carcinoma, Basal Cell* ; Diagnosis ; Humans ; Melanoma* ; Sensation ; Skin ; Spouses

Vascular tissue presumed to be the most sensitive target tissue of the immune and toxic reactions. Most of the vasculitides can be directly or indirectly associated with immunopathogenic rnechanisms. In this regards, the purpose of the study is to understand imrnunopathogenic mechanism of various cutaneous vasculitides by comparing their immunopathologic patterns. Imrnunopathologic studies were carried out on the blood vessel of various skin diseases by means of the direct immunofluorescent technique using FITC conjugated rabbit antihurnan IgG, IgA, IgM, C3 C1q, C4 and fibrinogen)(F). The results obtained were as follows : 16 patients with leukocytoclastic vasculitis out of 19 showed deposition of irnmune complex in the small upper dermal vessels and had positive reaction for F, 8 for IgA, 5 for C3 and 2 for IgM. Of the 6 patients with chronic pigmented purpura studied, 2 had IgM, 3 had Ca and all of these had F in small upper or middle dermal vessels. Immunopathologic patterns of livedo vasculitis were similar to those of chronic pigmented purpurs, except mainly affected in upper dermis. Nodular vasculitis and Behqets syndrome had deposits of F, C and IgM in medium or large vessels of the middle or lower dermis. Simultaneously, Cs in 2 patients with nodular vnsculitis and IgM in one patient with Behqets syndrorne were also noted along the basement mernbrane zone. In a patient with pityriasis lichenoides et varioliformis acuta, IgM and F were noted on the samll upper dermal vessels. With these results, the immune complex mechanism could be closly related the pathogenesis of most of cutaneous vasculitis. And various clinical manifestations or expression of vasculitis appear to be dependent upon 1) type of imrnune reaction, 2) size of blood vessels, 3) location and depth of blood vessels, 4) extend of affected areas and 5) involvement of other organs.
Antigen-Antibody Complex ; Blood Vessels ; Dermis ; Fluorescein-5-isothiocyanate ; Humans ; Immunoglobulin A ; Immunoglobulin G ; Immunoglobulin M ; Pityriasis Lichenoides ; Purpura ; Skin Diseases ; Vasculitis*