Pyogenic infection that involves the whole depth of the follicle and leads to its destruction with clinically evident scarring. Active papules and pustules fringe the advancing margin around a pink atrophic scar. Granulomatous inflammatory changes may give the papules a lupoid appearance. The process usually begins in front of one ear or under the chin and extends irregularly in any direction.
Folliculitis Sycosiformis Atrophicans, Sycosis Lupoides, Lupoid Sycosis