An immunohistochemistry for S-100 protein by biotin avidin system technique was done to evaluate the existence and distribution pattern of S-100 protein positive cells in various obtained were as follows. 1) Positive immunostaining for S-100 protein was observed in myoepithelial cell, serous acinar cell and nervous bundle in normal salivary gland. 2) Strong immunoreactivity for S-100 protein was shown in plemorphic adenoma, which was localized not only in myoepithelial cord or sheets of epithelial portion but also in chondrocytes, stellate cells of myxoid stroma and in squamous keratin pearl of mesenchymal metaplastic foci. 3) The S-100 protein was demonstrated in the tumor cells of tubular adenoma, acinic cell tumors and in epidermoid area of mucoepidermoid tumors. 4) Immunoreactivity for S-100 protein, however, was not found in the tumor cells of adenoid cystic carcinoma and adenolymphoma except for stroma reticulum cells. 5) Intensity of positive reaction for S-100 protein varied from cell to cell: Some had intense immunoreactivity, whreas others were only weakly positive or completely negative, even in myoepithelial cell nest of the same pleomorphic adenoma.

No abstract available.
Clonidine* ; Depression* ; Growth Hormone* ; Humans ; Panic Disorder* ; Panic*

No abstract available.
Animals ; Capsaicin* ; Colon* ; Cytokines* ; Lung* ; Melanoma, Experimental* ; Mice* ; RNA, Messenger*

No Abstract Available.
Astrocytes* ; Humans*

Solitary fibrous tumors (SFTs) most often involve the pleura and also may encompass the peritoneum and nonserosal sites. They occur as solitary encapsulated tumors and pursue a relatively benign clinical course. The usual criteria for malignancy are high cellularity, mitotic activity (more than 4 per 10 high-power fields), cellular pleomorphism, hemorrhage and necrosis as well as infiltrative growth. We report a case of malignant SFT of pleura who presented with an anterior mediastinal mass. Grossly, it was a 10x8x6.5 cm sized, encapsulated and well-demarcated, solid neoplasm with areas of extensive necrosis. Microscopically, parallel or haphazard arrangement of spindle cells with variable degrees of collagenous background were noted. Storiform fascicle formation, hemangiopericytoma-like pattern, and epithelioid cell clusters were often intermingled. Nodular areas with high cellularity and mitotic activity (> or =10/10 HPFs) were scattered throughout the neoplasm, however no definite cellular pleomorphism was encountered. Tumor cells were immunoreactive for vimentin and CD-34, which distinguished them from the mesothelial cells. Electron microscopically, they revealed fibroblastic and myofibroblastic differentiation.
Collagen ; Epithelioid Cells ; Fibroblasts ; Hemorrhage ; Mediastinum ; Myofibroblasts ; Necrosis ; Peritoneum ; Pleura ; Solitary Fibrous Tumor, Pleural* ; Solitary Fibrous Tumors* ; Vimentin

This study was undertaken to investigate the efficacy of 5% PABA cream using mouse ear swelling reaction(ESR). Mice were exposed to 100mJ/cm of UVB, five times a week for four weeks, on the both ventral aspect of the ear, with application of 5% PABA cream on the right ear. The results were as follows : 1. The intensity of ear swelling reaction of 5% PABA protected group was reduced greater than unproteeted group after the first 3 days of UUR. 2. The intensity of ear swelling reached at peak after 1 week of the ultraviolet radiation. Thereafter it has decreased gradually the following 4 weeks. The difference of ear swelling between the two groups was the greatest after 1 week, and the sunscreening efficacy of 5% PABA cream has remained persisted for 4 weeks. 3. The number of mice which have shown severe inflarnmatory response after ultravioiet radiation was more in unprotected group than that in 5% PABA protected group. 4. Determination of mouse ESR is considered a good method for the evaluation of longterm efficacy of sunscreen preparation.
4-Aminobenzoic Acid ; Animals ; Ear* ; Mice*

We report a case of angiosarcoma of the face and scalp in a 76-year-old man. Immunochemical staining with factor 8-related antigen and ultrastructural find ings confirm that this tumor was origined from endothelium. The patient had a good initial response to treatment with radiotherapy.
Aged ; Endothelium ; Factor VIII ; Hemangiosarcoma* ; Humans ; Radiotherapy ; Scalp*

Subacute cutaneous lupus erythematosus is a recently recognized distinct subset of lupus erythematosus, having characteristics of clinical, pathologic, serologic, irnrnunologic features. We present a case of subacute cutaneous lupus erythematosus in a 29-year-old woman with symmetric, superficial, nonscarring papulosquamous lesion on the face, scalp, and the extensor surface of the upper extremities. She has a mild systemic illness of musculoskeletal complaints. Serologic abnormalities of the patients are positive rheumatoid factor and anti-Ro antibody test, but fluorescent antinuclear antibody test is negative, which is done by the conventional methods uaing rodent tissue for the substrate. The histopathologic finding of the lesion show the sarne general pattern of the cutaneous lupus erythematosus, and lupus band test is positive.
Adult ; Female ; Fluorescent Antibody Technique ; Humans ; Lupus Erythematosus, Cutaneous* ; Rheumatoid Factor ; Rodentia ; Scalp ; Upper Extremity

No abstract available.
Humans ; Male*

BACKGROUND: Bone marrow transplantation is increasingly common as a therapeutic modality. Large volume of bone marrow has been aspirated under general anesthesia and can cause hemodynamic instability and complications. The purpose of this study is to review the cases of bone marrow harvesting in healthy donors and to find the proper anesthetic management for this procedure. METHODS: We retrospectively analyzed the medical records of 479 cases of bone marrow harvesting in healthy donor performed in Catholic University of Korea, St. Mary's hospital. RESULTS: Mean harvest volume was 1097.2 120.6 ml and duration of aspiration was 53.8 22.6 minutes. Aspirated harvesting volume was mainly replaced by blood products and crystalloid solutions. 55.7% of donors received homologous blood products and 74.5% of donors received autologous blood during the perioperative period. Mean hemoglobin concentration before harvesting was 12.3 1.8 gm/dL and there was no significant changes in hemoglobin concentrations after harvesting. The incidence of hypotension and tachycardia was 22.3 and 20.5%, respectively with higher incidence in the female group (p<0.05). The incidence of febrile reaction after harvesting was 15.5%. Average duration of admission for harvesting was 3.5 0.9 days and there were no life-threatening complications. CONCLUSION: We conclude that 479 cases of bone marrow harvesting were performed safely but we should consider to reduce the volume of homologous transfusion in healthy donors.
Anesthesia, General ; Bone Marrow Transplantation ; Bone Marrow* ; Female ; Hemodynamics ; Humans ; Hypotension ; Incidence ; Korea ; Medical Records ; Perioperative Period ; Retrospective Studies ; Tachycardia ; Tissue Donors*