Ninety black C 57 BL mice were divided into control and photochemotherapy groups. Control group was subdivided into a UVA 1rradiation only subgroup and a khellin only administration subgroup, while the phototherapy group was subdivided into one TMP and two khellin administration subgroups with dosages of 1.5mg/kg, 5mg/kg and 20mg/kg, respectivly. UVA was administered three thimes a week in a dose of 4J/cm for 4 weeks. Skin biopsies were taken at 0, l, 2, 3 and 4 weeks and the split DOPA stain was employed to observe pigment production. The number, size and circumference of the melanocytes were assessed. In summary, our results inclicate that khellin, which is slightly less effective than TMP at the same effective dose, is quite effective for pigment production and the degree of the production is dose related.
Animals ; Biopsy ; Dihydroxyphenylalanine ; Khellin* ; Melanocytes* ; Mice ; Photochemotherapy* ; Phototherapy ; Skin ; Thymidine Monophosphate ; Trioxsalen*

No Abstract available.
Diagnosis* ; Sleep Apnea, Obstructive*

Gastric polyp is a cinical term without any pathological significance. lt referes merely to any benign, mucosal lesions that protrudes in to the gastric lumen, but conventlonaily it includes a malignaiit lesion which seems to be degenerated from benign one. (continue...)
Polyps*

Most of malignant tumors in the urinary bladder is transitional cell carcinoma (TCC) deriving from the urothelium. Clinical stage and histopathologic grading of the TCC of the urinary bladder is important in the determination of the patient's prognosis. To investigate the correlation between the prognostic factors and the expression of the various oncoproteins and growth factors in each grade of the TCC, immunohistochemical stains for c-erbB2, c-myc, c-fos, bcl-2, p53, proliferating cell nuclear antigen (PCNA), and transforming growth factor-alpha (TGF-alpha) were performed in the formalin fixed paraffin embedded tissues of the TCC (Grade I; 15 cases, Grade II; 20 cases, Grade III; 15 cases) of the urinary bladder. The immunoexpression rate of c-erbB2 was immunoexpression 78.0% in the grade I, 85.0% in the grade II, and 95.0% in the grade III TCC. The immunoexpression rate of c-myc, c-fos and bcl-2 was below 5% in each grades of TCC. The p53 immunoexpression was identified in 11.5%, 24.3% and 30.6% of the grade I, II, and III TCC, respectively. The PCNA and TGF-alpha expression was 53.0% and 27.6% in the grade I, 77.3% and 32.7% in the grade II, and 78.2% and 37.3% in the grade III TCC, respectively. These results suggest that the expressions of c-myc, c-fos, bcl-2, and TGF-alpha are similar in each grade of the TCC and the positivity of c-erbB2, p53, and PCNA shows an increasing tendency for the higher grade TCC of the urinary bladder. Therefore, c-erbB2, p53, and PCNA are clinically useful predictors of the patient's prognosis.
Carcinoma, Transitional Cell* ; Coloring Agents ; Formaldehyde ; Intercellular Signaling Peptides and Proteins ; Oncogene Proteins ; Paraffin ; Prognosis ; Proliferating Cell Nuclear Antigen* ; Transforming Growth Factor alpha* ; Urinary Bladder* ; Urothelium

The solitary type of Koratoacanthoma is a common, rapidly growing, benign tumor with a natural history of spontaneous involution which was first described by Hutchinson in 1889. It was well known that this Keratoacanthoma is close resemblence to squamous cell carcinoma clinicallt & histopathology. The etiology of Kertoacanthoma is ucertain but it have been associated with many exogenous factors, including sun exposure, occupational exposure to heat and trauma, and tar and with autoimmune etiology and viral infection. We experienced 2 cases of soitary type of Keratoacantoma with typical clinical and histopathologic findings which presented on the pubic area and forehead but had no predisposing factors of Keratoacanthoma. The one was 66-year-old woman who had been a history of proritic, rapidly growing tumor on Mons Pubis since about 6 months ago. The another one was 40 year-old male who had been a history of asymromatic, growing tomor on forehead since about 3 months ago. In the H-E stained sections, there were horn filled invagination, dyskeratotic cell, horn pearl in the epidermis and an inflammatory infiltration in dermis. Diagnosis was cinfirmedby the clinical and histopatholigical pictures. The former was treated by electrocautery after simple excision and the latter by curretage and electrodesiccation.
Adult ; Aged ; Animals ; Carcinoma, Squamous Cell ; Causality ; Dermis ; Diagnosis ; Electrocoagulation ; Epidermis ; Female ; Forehead ; Horns ; Hot Temperature ; Humans ; Keratoacanthoma* ; Male ; Natural History ; Occupational Exposure ; Solar System

Malignant melanoma is a tumor arising within the melanocyte system of the skin, eyes and juxtacutaneous mucous membrane. Tbrough the lymphatic channel developed early metastasis and regional lymphade- nopzthy developed. Malignant melanoma may arise on apparently normal skin, in a junction nevua, rareh in a compound nevus and extremeIy rarely in an intradermaI nevus and 20% of total incidence of malignant melanoma are preceded by a nevocellular nevus. A 41 year-old male patient who had multiple, pea to walnut sized, black colored. nodules developing on entire body visited our Dermto. dept. About one year ago, solitary black colored nodule arose from preexisting pigmented nevus which had been from 20 yrs ago on Rt. ant. axillary area and then nodule remcved by wide exeision and regional lymphadenectomy at a Hosp. 2 months after surgical operation, multiple pea to walnut sized, black colored nodules has developed on entire body. There was no lymphadenopathy on entire body. In H-E & Fontana-Masson stain, numerous bizzarre large cells with hyperchromatic variable sized melanin pigments are seen in the dermis and subcutaneous tissues Mitotic figutes are present. Diagnosis was confirmed by the clinical and histological feature. The patient was treated with BCG waccination(4*10^6-8*10^6 live organisms weekly) by altemately intralesional inj, on the lesion and subcuraneous inj. on both shoulder during 6wks and has been in follow-up.
Adult ; Ants ; Dermis ; Diagnosis ; Follow-Up Studies ; Humans ; Incidence ; Juglans ; Lymph Node Excision ; Lymphatic Diseases ; Male ; Melanins ; Melanocytes ; Melanoma* ; Mucous Membrane ; Mycobacterium bovis ; Neoplasm Metastasis ; Nevus ; Nevus, Pigmented* ; Peas ; Shoulder ; Skin ; Subcutaneous Tissue

The multifactorial etiology of BCC(basal cell carcinoma) are incompletely understood, including factors leading to multiple lesions in some patients. Cases of multiple BCCs reported in the literature have been associated with UV irradiation, inorganic arsenic poisoning, X-ray therapy, hematologic malignancy and several genodermatoses such as nevoid BCC syndrome, albinism, xeroderma pigmentosum. Multiple BCCs presented on the sun-protected areas, lacking predisposing risk factors which have been known, is rare skin condition. However, it suggests that there may be an unknown genetic susceptibility to the development of multiple BCCs. We report a rare case of multiple BCCs, which had developed only on the sun-protected areas in 64-year-old man, without any known predisposing causes.
Albinism ; Arsenic Poisoning ; Carcinoma, Basal Cell* ; Genetic Predisposition to Disease ; Hematologic Neoplasms ; Humans ; Middle Aged ; Risk Factors ; Skin ; X-Ray Therapy ; Xeroderma Pigmentosum

lt is generally beIieved that several chemical mediators such as histamine, kinine, prustaglandin E and lysosomal enzyme are related to the pathogenesis of sunburn, but the exact mechenism of erythema is unknown. Recently, prostaglandins appear to be important mediators of ultraviolet erythema (UV-erythema) and several investigators has reported that the nonsteroidal antiinflammatory druga and corticosteroids supressed UV-erythema by inhibition of prostaglandin synthesis. This study was undertaken to evaluate the effect of topical nonsteroidaI antiinflammatary drugs and corticosteroids on UV-erythema induced by a artificial sunlamp. Nonsteroidal anti-inflammatory drugs (5% Bufexamac cream, 5% Ibuprofen cream, 5% Indomethacin cream) and corticosteroids(0.05% Fluocinonide cream, 0.5% Fluocortolone oint., 1%, Hydrocortisone cream) were applied immediately after 3~4 minimal erythema dose(MED) irradiation on back skin of 40 healthy volunteers and the delayed UV-erythema response was evaluated at 2, 4, 6, 8, 12, 24, 48 and 72 hours after irradiation, respectively. The resulta were as follows; 1) Minimal erythema dose(MED) was noted 4min. (62.5%), 3min. (25.0%), 5min. (22.5%). The averaged MED was 3. 63min. 2, MED has to be increased on site, applied nonsteroid and steroid agents topically, comparing with control site. 3) Blanching effect was detected in all cases of nonsteroid and steroid agents applicated topically, but in control site. 4) Average score in blanching effect was highest in 5% Indomethacin cream among nonsteroid agents(average score-2. 47) and 1% Hydrocortisone cream (average scoro -2. 63) among steroid agents.
Adrenal Cortex Hormones ; Bufexamac ; Erythema* ; Fluocinonide ; Fluocortolone ; Healthy Volunteers ; Histamine ; Humans ; Hydrocortisone ; Ibuprofen ; Indomethacin ; Prostaglandins ; Research Personnel ; Skin ; Sunburn ; Ultraviolet Rays*

Tuberculosis of the skin may present clinically as plaques, ulcers, verrucous, lesions, nodules, tumors, vegetatives reactions, and cicartricial infiltration. The reaction of the host to the presence of Mycobacterium tuberculosis also varies with the extent and the degree of invasion, the virulence of the bacilli, and nonspecific factors such as age and generaI state of health. The incidence of cutaneous tuberculosis has tendency to decline in the world because of thc availability of effective antiTB drugs, elimination of infected milk herbs, and an elevation of living standards, but in Korea, cutaneous tuberculosis remained to be a significant medical problem. We experienced 21 year-old male who had a case of 3 clinical types including Lupus vulgaris, Scrofuloderma, Papulonecrotic tuberculid. Diagnosis of 3 clinical types vere established by clinical history and signs, histo pathology, tuberculin test and effective of treatment vith INH, streptomycin and literature were reviewed.
Diagnosis ; Dronabinol ; Humans ; Incidence ; Korea ; Lupus Vulgaris ; Male ; Milk ; Mycobacterium tuberculosis ; Pathology ; Skin ; Socioeconomic Factors ; Streptomycin ; Tuberculin Test ; Tuberculosis ; Tuberculosis, Cutaneous* ; Ulcer ; Virulence ; Young Adult

The systolic time intervals were measured on 388 normal chidren, ranging from 8 months to 15years of age by using simultaneous recordings of the electrocardiogram, phonocardiogram and carotid or axillary arterial pulse. The statistical methods were applied to study the influence of age, sex and heart rate(HR) on these intervals. The results were as follows. 1. The regression equation of QS2was -1. 60HR+480+/-16 msec in males and -1.68HR+492+/-15 msec in females, respectively. 2. The regression equation of LVET was -1. 13 HR+359+/-10 msec in males and -1.21 HR+369+/-13 msec in females, respectively. 3. The regression equation of PEP was -0.58 HR+133+/-9 msec in males and -0.58 HR+128+/-9 msec in females, respectively. 4. The PEP/IVET ratio was 0.29+/-0.04 in males and 0.30+/-0.06 in females. 5. There was no sex difference in various systolic time intervals, and age had a slight influence but it was negligible for clinical use. 6. According to the regression equations of QS2, LVET, and PEP to the heart rate, QS2, and LVET were found to be more inversely correlated with heart rate than PEP.
Child* ; Electrocardiography ; Female ; Heart ; Heart Rate ; Humans ; Male ; Sex Characteristics ; Systole*