No abstract available.
Skin*

No abstract available.
Case-Control Studies* ; Placenta Previa* ; Placenta* ; Risk Factors*

A 51-year-old female had disseminated, symmetrically distributed, brownish black pigmentation and papillary hypertrophy on the intertriginous and flexural areas for 6 months, and gastric adenocarcinoma was confirmed during the evaluation of internal malignancy, The cutaneous finding of acanthosis nigricans was a significant cutaneous marker of internal malignancy in this case.
Acanthosis Nigricans* ; Adenocarcinoma* ; Female ; Humans ; Hypertrophy ; Middle Aged ; Pigmentation

A characteristic sonographic pattern that suggest a bowel lesion, called "Pseudokidney Sign" because itresembles the ultrasonic appearance of the kidney
Barium ; Gastrointestinal Diseases ; Kidney ; Mucous Membrane ; Mucus ; Neoplasm Metastasis ; Ultrasonics ; Ultrasonography

The use of artificial skins for full thickness wounds is an accepted technique, but unfortunately the take rate is low and the aesthetical result is not acceptable. The freeze-drying treatment of allogenic tissues can destroy cells with preserving the structural organization of extracellular matrices, permitting allogenic transplantation. In this study we investigated a new method to process the allogenic skin for transplantable allogenic dermis and this dermis was evaluated in a full thickness wound model. The results are as followings; 1. After treatment with NaCl and SDS solution and then with freeze-drying method, the allogenic dermis shows acellular dermal matrix with preserved normal extracellular matrix. 2. This allogenic dermis became completely incorporated into the wound without evidence of rejection or replacement by scar tissue. 3. The take rate of thin autografts overlying the allogenic dermis that were applied simultaneously was comparable to take rate of autograft alone. 4. The reduction in secondary contraction by allogenic dermis treated wounds was significant. 5. After grafting with cultured keratinocytes, the degree of epithelial coverage was 70% at 2 weeks. In conclusion, the allogenic dermis processed with our method displayed lack of antigenicity, and rapid revascularization. This allogenic dermis can permit simultaneous engraftment of an overlying STSG or cultured kerationocytes, reduce secondary contraction and improve cosmesis of full thickness wounds.
Acellular Dermis ; Autografts ; Cicatrix ; Dermis* ; Extracellular Matrix ; Keratinocytes ; Skin ; Skin, Artificial ; Transplants ; Wounds and Injuries*

No abstract available.
Fibroblasts* ; Skin*

No abstract available.
Ameloblastoma*

We experienced a case of generalized granuloma annular e in a 68-year-old man. Many factors have been implicated in the genesis of this disease, but in this case no etiologic factors were identified. He was treated successfully with systemic corticosteroid for about l year.
Aged ; Granuloma Annulare* ; Granuloma* ; Humans

Great difficulty may be encountered in the differentiation of basal cell carcinoma from trichoepithelioma snd, in some cases, it may even be irnpossible. Immunohistochemical methods using peanut agglutinin(PNA) which is glycoprotein of non-immune origin selectively binding to galactose-N-acetyl-galactosa-mine are increasingly used in dermatopathology to improve the diagnosis and differential diagnosis. Using PNA, anti-PNA antibody, and peroxidase antiperoxi-dase(PAP) technique, normal skin specimens, basal cell carcinomas, trichoepitheliiomas, and a variety of different skin tumors were studied, and different PNA Ibinding sites between basal cell carcinomas and trichoepitheliomas were observed. The results were as follows : l. In normal skin, except the basement membrane, epidermis and hair follicle epithelium showed a cell membrane staining of PNA, which stained weakly in the Ibssal cell layer. Sebaceous glands revealed membranous and cytoplasmic staining of PNA, but sweat ducts and duct coi1s were mostly negative. 2. 34 of 36(94.4%) basal cell carcinoma sections demonstrated peritumorous PNA-positive bands, and none of 5 trichoepithelioma sections showed peritumorous PNA-binding. 3. Peritumorous PNA-positive bands were strongly positive in solid and keratotic basal cell carcinomas, but decreased or absent in the vicinity of the ulceration or the dense inflammatory infiltration. 4. None of the other skin tumors(squamous cell carcinoms, keratoscanthoma, Bowens disesse and actinic keratosis} showed a periturnorous PNA-positive band. Therefore, we believe that the PNA staining on paraffin-embedded sections using PAP technique can be a useful probe for the differentiation of basal cell carcinoma from trichoepithelioma.
Actins ; Basement Membrane ; Carcinoma, Basal Cell* ; Cell Membrane ; Cytoplasm ; Diagnosis ; Diagnosis, Differential ; Epidermis ; Epithelium ; Glycoproteins ; Hair Follicle ; Peanut Agglutinin* ; Peroxidase ; Sebaceous Glands ; Skin ; Sweat ; Ulcer

No abstract available.
Bile Ducts* ; Bile* ; Choledochal Cyst*