Fig. 4

Equine vitiligo. a and c Quarterhorse with multifocal depigmented macules on the lips, muzzle, face and peri-ocular area (courtesy of Dr. J. Davis). b Horse with only a large, unilateral, depigmented patch below the right eye (courtesy of Dr. J. Davis). d 1-year-old Swedish warmblood stallion with coalescing leukodermic macules and patches of the lips (courtesy of Dr. K. Bergvall)