title: 'Tin-tack' sign in localized pemphigus foliaceus.
abstract: Two patients with localized pemphigus foliaceus are described, in whom a positive 'tin-tack' sign was a significant feature; this is the appearance of small horny plugs attached to the undersurface of the scale removed from the affected site. This report is intended as a reminder that a positive 'tin-tack' sign is not exclusively a feature of discoid lupus erythematosus but is also seen in localized pemphigus foliaceus.
mesh_terms: D000328:Adult; D000368:Aged; D006801:Humans; D008297:Male; D009668:Nose Diseases / Q000473:pathology*; D010392:Pemphigus / Q000473:pathology*