A total of 40 adult black-mice was used and divided into two groups for expeiment. Group A was irradiated by UVB only and Group B had SPF 15 sunscreen a.pplied to the back followed by irradiation by UVB. Each group was divided again into 5 subgroups according to the days of UVB irradiation frcm 2 to 10 days. A Waldmann combination UVA+UVB Radiation Treatment Cabin 8001 was used as the light source and the UVB dosage was 50 mJ/cm2 daily. Skin specimens were taken 24 hours after the last irradiation. Histologic changes in epidermis were reviewed by the light microscope. In group A, the characteristic sunburn cells(SBC) were observed with 100 mJ/ cm2. SBC number was maximum with 400 mJ/cm2. The other epidermal changes were parakerat.osis, crusts, atypical cells, and mitoses of basal cells, which showed graded responses to the UVB doses. Pretreatment with the sunscreen completely prevented these changes.
Adult ; Epidermis ; Humans ; Keratinocytes* ; Mitosis ; Skin ; Sunburn

The case of a 56-year-old woman with a keratoacarithoma(KA) of the labial mucosa is herein reported, The tumor was excised and the pathological features were characteristic of a KA, This case is reported because the oral mucosa is such an unexpected location for solitary KA and the labial mucosa of this patient received chronic actinic damage, which suggested an etiological relationship. Follow-up examination of the patient after four months showed no recurrence.
Actins ; Female ; Follow-Up Studies ; Humans ; Keratoacanthoma* ; Middle Aged ; Mouth Mucosa ; Mucous Membrane* ; Recurrence ; Solar System*

Generalized pustular psoriasis is a severe form of paoriasis and is frequently associated with arthritis and nail deformity. We present a case of generalized pustular psoriasis in a 40 year-old man, with nail change, arthritis of both knee and ankle joints, spondylitis, and glomerulonephritis. We found a positive results of HLA A-9, B-27 in this patient. Skin lesions, arthralgia and hematuria improved marked1y by plasmapheresis and application of topical corticostertoid.
Adult ; Ankle Joint ; Arthralgia ; Arthritis* ; Congenital Abnormalities ; Glomerulonephritis* ; Hematuria ; Humans ; Knee ; Plasmapheresis ; Psoriasis* ; Skin ; Spondylitis*

Various epidermal changes overlying a dermatofibroma can be induced through the proliferation of pluripotential epidermal cells by the stimulation of mesenchymal factors. The authors report a case of dermatofibroma in a 55-year-old male who had a reddish brown, asymptomatic nodule of 5 years duration on his left forearm. The biopsy specimen revealed a dermatofibroma of cellular type associated with epidermal changes: (1) acanthosis; (2) elongation of rete ridges; (3) thin interlacing epidermal strands with increased pigmentation resembling seborrheic keratosis or fibroepithelioma; (4) immature hair follicles and sebaceous lobules; (5) hair germ like buddings; (6) superficial basal cell epithelioma-like proliferations.
Biopsy ; Forearm ; Hair ; Hair Follicle ; Histiocytoma, Benign Fibrous* ; Humans ; Keratosis, Seborrheic ; Male ; Middle Aged ; Pigmentation

We experienced three cases of non-giant congenital nevus. They showed zosteriform or heart-shaped grouping of pigmented papules which were pierced by hairs. Histopathologic examination disclosed nevus cell infiltration in and around hair follicles and in the upper two thirds of reticular dermis. We would like to report these cases as follicle-centered spotted grouped pigmented nevi.
Dermis ; Hair ; Hair Follicle ; Nevus ; Nevus, Pigmented*

We present herein a case of sebaceous hyperplasia in a 55-year-old male, who showed multiple asymptomatic yellowish papules on the forehead and the cheeks. Histopathologic examination of a papule revealed numerous sebaceous lobules grouped around several enlarged sebaceous ducts. Three weeks of oral administration. of isotretinoin 40 mg per day brought marked improvement.
Administration, Oral ; Cheek ; Forehead ; Humans ; Hyperplasia* ; Isotretinoin* ; Male ; Middle Aged

We report herein a case of eosinophilic pustular follicultis in a 20-year-old man. The patient showed typical clinical picture with specific laboratory and histopathological findings of eosinophilic pustular folliculitis. The patient responded well to systemic administration of corticosteroid and dapsone.
Dapsone ; Eosinophils* ; Folliculitis* ; Humans ; Young Adult

Ultrastructural study was taken in a 48 year old male farmer with colloid milium. Electrcn microscopically, colloid was mainly composed of protofilaments, amorphous substance and degenerating collagens surrounded by halos. Colloidal filaments were curved and branched at their ends. Fibroblasts near the colloid island contained amorphous materials and protofilaments idnitical to that of colloid materials, Thus we suggest that. colloid milium may be produced by the abnormal fibroblasts or may be derived from actiinically damaged collagen fibers.
Collagen ; Colloids* ; Fibroblasts ; Humans ; Male ; Middle Aged

No abstract available.
Kidney Calculi*

The application of fine needle aspiration (FNA) cytology to the soft tissue tumors had been neglected. In recent years, however, FNA has been used increasingly in the preoperative diagnosis of these tumors due to its usefulness and accuracy. We present 3 cases of liposarcoma, myxoid, myxoid with round cell, and pleomorphic, diagnosed by FNA cytology with histologic confirmation. Good correlation between his- tologic and FNA cytologic findings was found. Although the cytologic appearances of liposarcomas varied with histologic type, the main criterion was the presence of atypical multivacuolated lipoblast with characteristically scalloped nuclei.
Biopsy, Fine-Needle ; Child* ; Diagnosis ; Humans ; Hypertension, Renovascular* ; Liposarcoma ; Liposarcoma, Myxoid ; Pectinidae