PMC6335686_01
Short and sparse hair over the scalp.
CRIDM2019-8951093.001.jpg
PMC6335686_01_CRIDM2019-8951093.001.jpg
fig1
A 6-year-old Asian girl presented with short, sparse hair over the scalp noticed since birth (Figure 1).
Trichoscopy (20x) showing (a) "crawling snake" appearance (red circle), (b) trichoptilosis (black arrow), and (c) variation in shaft diameter (white circle) and kinking of hair shaft (white arrow).
CRIDM2019-8951093.002.jpg
PMC6335686_01_CRIDM2019-8951093.002.jpg
fig2
Trichoscopy revealed "crawling snake" appearance, with short wave cycles (Figure 2(a)) and trichoptilosis (Figure 2(b)). Trichoscopy guided plucking of hair was done and a single strand was examined, which revealed kinking of the hair shaft and variation in shaft diameter (Figure 2(c)).