PMC6763501_01
Girl with a loss of facial flushing and warming of the right side after exertion (age of 3 years; picture shown with parental approval).
10-1055-s-0039-1697667-i190496cr-1.jpg
PMC6763501_01_10-1055-s-0039-1697667-i190496cr-1.jpg
FI190496cr-1
However, her parents reported that the right side of her face remained pale and was not sweating during agitation ( Fig. 1 ).