Stevens Johnson syndrome SJS and Toxic epidermal necrolysis TEN

•SJS •TENs •DRESS •AGEP •Urticaria •Angioedema •Erythema multiforme •Fixed drug eruption •

SJS and TEN occur on a spectrum of the same disease and are based on the extent of total body surface area affected: SJS: affecting 10%

sjs SJS is defined as the involvement of less than 10% of the body surface area , while TEN involves more than 30% When the percentage of BSA

sjs SJS is a less severe manifestation involving mainly the lips, eyes and genital mucosa In TEN large areas of skin are killed by the immune reaction precipitated