[Dyshidrotic pemphigoid].
BACKGROUND
Clinical expression of pemphigoid can sometimes be misleading. Localized dyshidrosis is rarely reported in the literature.


METHODS
We observed 4 cases of pemphigoid with unusual dyshidrosis lesions. Skin biopsy was unspecific in both cases. Immunofluorescence gave the diagnosis in both. One case responded to low-dose general corticosteroids associated with local applications of corticosteroids. The other patients required high-dose oral corticosteroids.


CONCLUSIONS
Our cases illustrated the misleading dyshidrosis nature of certain pemphigoids and the need for repeated skin biopsies with immunofluorescence in case of recent development of dyshidrosis in elderly subjects. As in the literature, and despite the localized nature of the lesions, general corticosteroid treatment appears necessary in many cases.
D000368:Aged; D000369:Aged, 80 and over; D003937:Diagnosis, Differential; D011146:Eczema, Dyshidrotic / Q000175:diagnosis* / Q000188:drug therapy; D005260:Female; D005455:Fluorescent Antibody Technique; D005533:Foot Dermatoses / Q000175:diagnosis / Q000188:drug therapy; D005938:Glucocorticoids / Q000627:therapeutic use; D006229:Hand Dermatoses / Q000175:diagnosis / Q000188:drug therapy; D006801:Humans; D008297:Male; D010391:Pemphigoid, Bullous / Q000175:diagnosis* / Q000188:drug therapy
D005938:Glucocorticoids
La pemphigoïde dysidrosique.