pityriasis lichenoides

Question 1

what do u callthe acuteNd chronic type

Answer 1

■ PLis an eruption o unknown etiology, characterized clinically by successive crops o a wide range o morphologic lesions.
■ Classif ed into an acute orm, pityriasis lichenoides et varioli ormis acuta (PLEVA), and a chronic orm, pityriasis lichenoides chronica (PLC).

Question 2

gender

Answer 2

male

Question 3

lesions

Answer 3

Lesionstendtoappearincropsoveraperiodo weeksormonths.Uncommonly,patientswithan
acuteonseto thedisordermayhavesymptomso anacuteinectionwith ever,malaise,andhead-
ache. Cutaneous lesions are usually asymptomatic but may be pruritic or sensitive to touch.
■ Lesions:PLEVA.Randomlyarranged,mostcommonlyontrunk,proximalextremitiesbutalso
generalized, including the palms and soles. Bright-red edematous papules (i.e., lichenoides), less commonly vesicles, which undergo central necrosis with hemorrhagic crusting (i.e., varioli ormis, hencethedesignationPLEVA)(Fig.3 23AandB).PLC.Thisisthechronic orm,scalingpapuleso reddish-browncolor,andacentralmica-likescale(Fig.323C).Postin ammatoryhypo-orhyper-
p i g m e n t a t i o n o t e n p r e s e n t s a t e r l e s i o n s r e s o l v e . P L E VA m a y h e a l w i t h d e p r e s s e d o r e l e v a t e d s c a r s .

Question 4

how many months resolution.

tx

Answer 4

New lesions appear in successive crops. PLC tends to resolve spontaneously a ter 6 to 12 months. In some cases, patients relapse a ter many months or years.
■ Most patients do not require any therapeutic intervention. Oral erythromycin and tetracycline are e ectiveinsomecases.Ultravioletradiation(whethernaturalsunlightorbroadbandUVB),311-nm UVB,andPUVAarethetreatmentso choicei oralantibiotics ailatera2-weektrial.