Wednesday, March 31, 2010


A hair pull test shows fragmented hairs of varying lengths.

Challenge: What is the cause of this patient's hair loss?

Image shown under Fair Use.


Anonymous said...

traction alopecia?

kel said...

Tinea capitis

shabnam sharan said...

Traction Alopecia

Craig Chen said...

yep traction! tinea is definitely on the ddx for this age group but the distribution is better for traction alopecia.

This is traction alopecia (or traumatic alopecia), a form of nonscarring hair loss due to styling techniques that apply a chronic mechanical tension. It is generally reversible.

Sources: UpToDate;