Temporal triangular alopecia (Q86220): Difference between revisions

Temporal triangular alopecia is a circumscribed, non-scarring, non-inflammatory permanent alopecia of unknown cause confined to the frontotemporal scalp. The area of hair loss is commonly triangular but may be oval or lancet-shaped. It is usually unilateral. The alopecia is apparent from birth in about a third of cases but may not be noted until later childhood. It has, rarely, been associated with phakomatosis pigmentovascularis.