skin AE pantomorphia erythema exudativum AE WEB: http://en.wikipedia.org/wiki/Erythema_multiforme JX, LW, YH Pantomorphia erythema exudativum AE is a skin AE that is a skin condition of unknown cause, possibly mediated by deposition of immune complex (mostly IgM) in the superficial microvasculature of the skin and oral mucous membrane that usually follows an infection or drug exposure. It is an uncommon disorder, with peak incidence in the second and third decades of life. 多形性渗出性红斑