Biomedical subjects
D Sengel
Publications and source records attributed to D Sengel.
[White lentiginosis].
INTRODUCTION: A congenital guttate hypomelanosis is an unusual feature not yet mentioned in the dermatologic literature. CASE REPORT: We observed 1982 in a 28 y. female patient numerous guttate lesions, which were flat and pigmented on the light-exposed areas of her limbs, flat or papulokeratotic and depigmented on her trunk. These lesions disclosed a particular histological aspect characterized by a lentiginous hyperplasia of the epidermis, with elongated club-shaped rete ridges, and an unusual loss of pigmentation without disturbance of the keratinization. Further electronmicroscopical and immunohistochemical data were not available. The patient emphasized the congenital occurrence of these lesions, whose fixity could be assessed during a 4 year-follow up time. COMMENTS: The unusual histological aspect allows the differentiation of these depigmented spots and other known similar conditions: macular leucoderma as sequellae of previous inflammatory diseases, hypomelanotic macules associated with genodermatoses, idiopathic guttate hypomelanoses. CONCLUSION: This seems to be a not yet described entity which we propose to denominate "white lentiginosis".
Perforating lichen planus.
We describe a case of perforating lichen planus. The foreign material eliminated by this path appears to be represented by the numerous hyaline bodies present at the base of the perforation. This unusual variant may be added to the many variants of lichen planus previously described: atrophic, hypertrophic, planopilaris, bullous, etc. . .
[Occupational allergy to diazo-paper used in the textile industry (author's transl)].
A worker of the textile industry showed an allergic contact eczema caused by diazodiethylaniline contained in diazopaper used in the manufacture of patterns.
[Contact eczema and occupational eczema].
Explore the source record for details and available documents.
[Allergy due to Disperse Yellow 3 of clothing dyes (stockings and socks). Detection of this dye in commercial products].
Explore the source record for details and available documents.
[Study of skin tolerance with regard to quaternary ammonium compounds in nursing personnel].
Explore the source record for details and available documents.