Bullous scabies: a diagnostic challenge.

Scabies, a contagious infestation associated with the human mite Sarcoptes scabiei var hominis, occasionally displays a spectrum of atypical cutaneous manifestations and associated symptoms. We describe an unusual case of scabies with bullae formation that mimicked bullous pemphigoid in clinical and histopathologic examination but not direct and indirect immunofluorescence examination.