Patient 140
On August - 3 - 2009
In a 35-year-old man, on the scalp
What to see at dermoscopy
-hair diameter diversity
-brown halo at the follicular ostium around the emergent hair shaft
-focal atrichia (empty follicles)
Dermoscopy in favor of androgenetic alopecia
Comments: androgenetic alopecia (AGA) is the most common form of hair loss (80 and 50% of men and women, respectively). Hair thinning is limited to the frontal, temporal, and vertex areas (androgen-dependent scalp regions) and dermoscopy is usefull to detect early AGA and for differential diagnosis with telogen effluvium.