Pigmented purpuric contact dermatitis from Disperse Blue 106 and 124 dyes.
The diagnosis of purpura pigmentosa progressiva in a female patient had to be changed to purpuric contact dermatitis after patch testing with textile dyes. A modified patch test performed in the area in which most of her skin lesions were located revealed a petechial reaction to the azo dye Disperse Blue 124/106. For evaluation of purpura pigmentosa progressiva we suggest a patch test with potential allergens, and, especially for textile dyes, a patch test at the lesion site may be helpful.
Komericki
P
P
Department of Environmental Dermatology and Venerology, University of Graz, Austria.
Aberer
W
W
Arbab
E
E
Kovacevic
Z
Z
Kränke
B
B
D000485:Allergens / Q000009:adverse effects*; D001391:Azo Compounds / Q000009:adverse effects*; D017449:Dermatitis, Allergic Contact / Q000175:diagnosis* / Q000209:etiology / Q000473:pathology; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D011695:IgA Vasculitis / Q000175:diagnosis* / Q000209:etiology / Q000473:pathology; D007866:Leg; D008875:Middle Aged; D010328:Patch Tests
D000485:Allergens; D001391:Azo Compounds; C069319:Disperse Blue 124; C049175:disperse blue 106