To our knowledge, the emergency medicine literature includes no case reports describing erythema ab igne
Erythema ab igne
caused by laptop computer gaming--a case report.
Laptop computer-induced erythema ab igne
in a child and review of the literature.
Repeated and prolonged exposure to heat insufficient to produce a burn can cause a cutaneous lesion, described as erythema ab igne
, which is characterized clinically by reticular hyperpigmentation and telangiectasia, and histologically by the basophilic degeneration of connective tissue and elastic fiber alterations, which are similar to those observed in photoaged skin.
Toasted skin syndrome, known as erythema ab igne
or EAI, is caused by exposure to heat, although it is not a burn.
A histological study of the condition of erythema ab igne
, which results from chronic focal overheating of the skin, showed that elastotic change occurred throughout the depth of the dermis--presumably reflecting the depth of penetration of the infrared rays.
The rash, however, looked exactly like Erythema ab igne
The exact pathogenesis of erythema ab igne
is not known, but it is thought that cutaneous hyperthermia involving temperatures of 43[degrees] -47[degrees] C (109[degrees]-117[degrees] F) can result in changes similar to those that occur with exposure to ultraviolet radiation.