Annular and annular atrophic lichen planus

Question 1

Occurs in how many percent of patients with LP

Answer 1

3-7%. more common in men 90% of cases.
favor axilla penis scrotum and groin.
asymptomatic most pxs.

Question 2

dominant feature

Answer 2

Central hyperpigmentation

may coalesce to form polycyclic figures.