TEN and SJS typically evolve after exposure to certain drugs or infections. If less than 10% of body is affected, it is aka ____. If greater than 30% of the body is affected, it is aka ____.

TEN and SJS typically evolve after exposure to certain drugs or infections. If less than 10% of body is affected, it is aka ____. If greater than 30% of the body is affected, it is aka ____.

• A. Staphylococcal scalded skin syndrome; Toxic epidermal necrolysis
• B. Stevens-Johnson Syndrome; Toxic epidermal necrolysis
• C. Erythema multiforme; SJS
• D. Toxic epidermal necrolysis; Stevens-Johnson Syndrome

Answer: (B)

Stevens-Johnson syndrome and toxic epidermal necrolysis are severe mucocutaneous reactions driven by drugs or infections, and the name reflects how much skin is involved. When the detachment involves less than 10% of body surface area, the term used is Stevens-Johnson syndrome. When the detachment exceeds 30%, it is Toxic Epidermal Necrolysis. Between about 10% and 30% lies an overlap category, but the clear-cut thresholds map to the pairing: Stevens-Johnson syndrome for the smaller involvement and toxic epidermal necrolysis for the larger involvement.

Stevens-Johnson syndrome and toxic epidermal necrolysis are severe mucocutaneous reactions driven by drugs or infections, and the name reflects how much skin is involved. When the detachment involves less than 10% of body surface area, the term used is Stevens-Johnson syndrome. When the detachment exceeds 30%, it is Toxic Epidermal Necrolysis. Between about 10% and 30% lies an overlap category, but the clear-cut thresholds map to the pairing: Stevens-Johnson syndrome for the smaller involvement and toxic epidermal necrolysis for the larger involvement.