BACKGROUND: The visible cutaneous pigmentary response to ultraviolet A(UVA) is immediate, whereas ultraviolet B(UVB)-induced pigmentation appears after a delay of several days. However, some investigators reported that UVA also can induce delayed taniing. OBJECTIVE: In order to determine whether the pigmentation induceil by UVA irradiation is accompanied by melanocytes responses which are the same or different from those following a UVB-indueed tan, we irraiated malignant melanoma cells to UVA or UVB. METHOD: On the 7th day after irradiation of UVA or UVB, we exa nined the cell counts and the melanin content of control and experimental groups. RESULTS: Although a dose of 10 J/cm decreased the number of manignant melanoma cells, there was no significant difference between the control and UVA-exposure griiups. But there was a significant decrease after UVB-exposun. UVB-exposure groups showed a significant increase of melanin cortent. A dose of 10 J/cm of UVA also induced a significant increase of melanin content. CONCLUSIONS: The data suggest that UVA at a clinically relevant dose has a significant effect on human melanocytes. So, UVA very likely plays a role in the increased, melanization associated with delayed tanning.
Cell Count ; Cell Line* ; Humans ; Melanins ; Melanocytes ; Melanoma* ; Pigmentation ; Research Personnel ; Tanning ; Triacetoneamine-N-Oxyl

A 25-year-old man with familial benign chronic pemphigus presented with a one-year history of a localized pruritic recurrent eruption on his perianal area, Physical examination showed moist, macerated, fissured and scaly patches on erythematous base, A biopsy specimen showed extensive intraepidermal separation containing acantholytic cells. Electron microscopic observation showed widened intercellular space, detachment of the tonofilaments from the desmosomes, and subsequent concentration of the tono filaments around the nucleus. Microvilli were elorigated, thinned and branehed. 1)esmosomes were reduced in number. This case is unique in its clinical location, showing no family tendency.
Adult ; Biopsy ; Desmosomes ; Extracellular Space ; Humans ; Intermediate Filaments ; Microvilli ; Pemphigus, Benign Familial* ; Physical Examination

Hypohidrotic ectodermali dysplasia is a rare and heterogenous genodermatosis that is characterzed by hypohidrosis, hyptrichosis, dental hypoplasia, and a characteristic facies. A 16-month-old male was evaluated for anodontia and anhidrosis since birth. There was no family history of this disease. His face was characterized by a broad nose and sparse eyebrows and periorbital wrirkling. The skin was dry, and scalp hairs were thin and sparse. Skull X-ray finding revealed noth ing remarkable except de;ayed teeth eruption. His developmental status for which we used DDS'I' was slightly reduced on inental development and showed normal on physical development. A skin biopsy was done on skin from the left palm, which showed a few immature eccrine glands in the dermis. We report a typical form of hypohidrotic ectodermal dysplasia with a review of the literature.
Anodontia ; Biopsy ; Dermis ; Eccrine Glands ; Ectodermal Dysplasia 1, Anhidrotic* ; Eyebrows ; Facies ; Hair ; Humans ; Hypohidrosis ; Infant ; Male ; Nose ; Parturition ; Scalp ; Skin ; Skull ; Tooth

The cutaneous metastasis of pancreatic carcinoma by this technique is rarely reported in the literature. A 67-year-old woman was evaluated for left-sided abdominal pain and a palpable abdominal mass. Abdominal CT confirmed the presence of a solid mass involving the pancreas. Ultrasonically guided percutaneous aspiration biopsy was performed. About six month later, the patient was readmitted with a tender tumor mass at the site of the previous aspiration biopsy. Physical examination disclosed a 4 × 4 cm sized firm, tender tumor mass on the abdomen. Histopathological findings of the tumor mass are consistent with metasta tic lesions from a pancreatic carcinoma. We report a case that suggests cutaneous metastsis of pancreatic carcinoma by fine needle aspiration biopsy.
Abdomen ; Abdominal Pain ; Aged ; Biopsy* ; Biopsy, Fine-Needle* ; Biopsy, Needle ; Female ; Humans ; Neoplasm Metastasis* ; Pancreas ; Physical Examination ; Tics ; Tomography, X-Ray Computed

We presents a case of metastatic squarnous cell carcinoma(SCC) with multiple Bowen's disease. A 34--year-old rnale patient visited our OPD due to a bady-fist sized hard palpable mass on the left inguinal area and multiple, scattered, brownish, variable sized, verrucous papules on the whole body. About 6 months later, he cornplained dyspnea and collapsed left lower lobe was seen in the chest PA. Histopathologically, metastatic SCC and Bowen's disease were seen in the sections frorn left inguinal mass, lung lesion and verruous papule respectively. We suspected that left inguinal mass and lung lesion is metastasized from right palm lesion.
Bowen's Disease* ; Carcinoma, Squamous Cell* ; Dyspnea ; Humans ; Lung ; Neoplasm Metastasis ; Thorax

No abstract available.
Dermatitis, Atopic* ; Killer Cells, Natural*

No abstract available.
Adolescent* ; Humans

We report a case of classic Kaposi's sarcoma (KS) in a 67-year-old man, who had multiple cutaneous lesions of the feet and left hand as well as an internal involvement of the stomach. The histopathologic findings showed typical features of KS as a mid-dermal tumor composed of vascular proliferations, vascular slits, spindle cells, extravasated erythrocytes and deposits of hemosiderin. Analysis of T-cell subpopulations showed decreased T4 lymphocytes and in-creased T8 lymphocytes; the ratio of T4M lymphocytes was decreased. Natural killer cell activity was also decreased. These findings suggest a possible relationship between immunological abnormalities and the pathogenesis of this disease. The patient's serum was negative for antibodies to the human immunodeficiency virus (HM). This report describes a case of classic KS with immunological abnormalities and internal involvement and possible pathogenetic mechanisms are discussed.
Aged ; Antibodies ; CD4-Positive T-Lymphocytes ; CD8-Positive T-Lymphocytes ; Erythrocytes ; Foot ; Hand ; Hemosiderin ; HIV ; Humans ; Killer Cells, Natural ; Lymphocytes ; Sarcoma, Kaposi* ; Stomach ; T-Lymphocytes

This study was performed to detect the hormonal abnormalities and to investigate the relationship between the levels of plasma testosterone and DHEA-S in 21 female patients with acne vulgaris using radioimmunoassay. The results were as follows : 1. The levels of plasma testosterone in patients group and control group(n=9) were 352+/-11.8 ng/dl, 223+/-9.7 ng/dl, respectively, and significantly elevated in patient group(p < 0.01), 2. The levels of plasma DHEA-S in patient group and control group were 286.6+/-126.8 pg/dl, 238.6+/-60.0 pg/dl, respectively, and did not show statistical significance. 3. The levels of plasma testosterones in patient subgroups classified by modified Pillsbury method were as follows minor group 32.6+5.3 ng/dl, mild group 33.4+/-15,5 ng/dl, moderate group 39.6+/-12.6 ng/dl. The testosterone levels in all the subgroups increased significantly than those in control group(352-t11.8 ng/dl) (p<0.05, p<0.05 p < 0.01) 4. The levels of plasrna DHEA-S in patient subgroups were follows minor group 242.5+/-412 pg/dl, mild group 263.9+/-166.1 pg/dl, moderate group 353.4+/-1273 pg/dl. The DE3EA-S levels in moderate group increased significantly than those in cotrol (238,6+/-60,0 pg/dl) and minor group(p<0.05). 5. There was no correlation between the plasma testosterone levels and the plasma DHEA-S levels in the acne patients.
Acne Vulgaris* ; Dehydroepiandrosterone* ; Female ; Humans ; Plasma* ; Radioimmunoassay ; Testosterone*

We report herein a case of pityriasis rubra pilaris in a 39-year-old male, who had erythematous scaly patches on the face, trunk and extremities for one year. The skin lesion showed well defined plaques on the elbow and knee joint areas, and exfoliative hyperkeratotic sheets with fissures on the palms and soles. He had no family and past history of such skin lesion. He was treated with etretinate lmg/kg/day for 1 week initially, and then tapered off 0.5mg/kg/day for 5 weeks with marked improvement. There was no exacerbation and recurrence of the skin lesion for about 1 year.
Acitretin* ; Adult ; Elbow ; Etretinate* ; Extremities ; Humans ; Knee Joint ; Male ; Pityriasis Rubra Pilaris* ; Pityriasis* ; Recurrence ; Skin