Assessment of Atrophy of Human Epidermis Caused by Various Corticosteroids Using Chamber Occlusion and Histometry / 대한피부과학회지

The aim of this stud y was to compare the epidermal thinning properties of four corticosteroid ointments applied under occlusion, using histology and histometry. The results were surnmerized as follows: 1.The stratum corneurn was dramatically thinned, appearing as a wispy layer of horny cells as apposed to the norrnal basket-weave configuration. this effect was prominent at sites treated with clobestasol propionate, fluocinonide, and fluocinolone acetonide. 2. With the histometry, visible epidermal thickness wa.s markedly reduced. This effect w is prominent in the following ascending order: fluocinolone acetonide, fluocienonide, clobestasol-17-propionate. Hydrocortisone was the least atrophogenic. 3. Clohestasol-17-propionate and fluocinonide caused significant flattening of dermo-epidermal junction, Fluocinolone acetonide and hydrocortisone caused less pronounced cbanges. 4. Marked capillary dilation af papilly dermis is caused by clobestasol-17-propionate, fluocinonide and fluocinolone acetonide.

Two Cases of Xeroderma Pigmentosum / 대한피부과학회지

Xeroderma pigmentosum is a hereditary disorder characterized by the early development of pigmentary chnges, atropht, keratoses, and carcinoma, predominantly light exposed area skin.Two cases of xeroderma pigmentosum complicated by basal cell Ca. were presented. The one was 15 years old male who had been suffered from pea to walnut sized multiple tumors and ulcers on the face with scattered brownish macuIes on the eun exposed area since about 9 years old of his age. The other was 22 years old maIe who had been suffered from the same skin lesions as the former on the face, neck and dorsum of hands. In both cases skin lesions aggravated during each summer seasons and there were on history of convulsions and other neurological symptoms Histopathological findings of tumors on both cases revealed typical findings of basal cell Ca.