Secondary cicatricial and other permanent alopecias

Abstract

• Various non-follicular scalp conditions can cause secondary scarring or permanent alopecia. • Possible causes are congenital defects, trauma, inflammatory conditions, infections, neoplasms, and, rarely, drugs. • Associated signs and symptoms and other diagnostic procedures may aid in the diagnosis. • Detection of the underlying disorder may be difficult in end-stage lesions. • Treatment is specific in active conditions; surgery is an option in localized scars. © 2008 Springer-Verlag.