derm

Question 1

sharply demarcated, erythematous weeping plaques after using new lotion suggests….

Answer 1

contact dermatitis!! tx by avoiding irritants + topical glucocorticoids

Question 2

flat-topped, violaceous w/ little white/gray lines of flat-topped pruritic polygonal papules on wrists, legs, genitalia…

Answer 2

lichen planus! tx w/ topical glucocorticoids - often spon resolve

Question 3

erythematous pruritic scales w/ oozing lesions on medial ankles w/ hyperpigmentation…

Answer 3

STASIS DERMATITIS!

-valvular incompetance - tx w/ topical glucocorticoids, avoid irritants, elevation, compression stockings

Question 4

man w/ hyperpigmentation on back and chest that fluoresces orange under uv light…

Answer 4

tinea versicolor!
fungal infection most on chest, back, shoulders
-can be red/brown or light, start as demarcated ovals, scaly that coalesce and are orange under uv and spaghetti and meatballs under woods lamp
-tx w/ topical antifungals