leukotrichia

Whiteness of the hair.

Whiteness of the hair.

• hyperesthetic l. — painful, crusted skin lesions on the dorsal midline of horses. White hairs emerge after several weeks.
• periocular l. — loss of pigmentation around the eyes; seen in Siamese cats, mainly females. It is usually transient and may be precipitated by estrus, pregnancy and systemic illness. Called also goggles.
• reticulated l. — seen in Quarter horses, Thoroughbreds and Standardbreds; linear crusts, which appear in a cross-hatched pattern over the back, are followed by loss of hair and regrowth of white hairs. Called also tiger stripe, variegated leukotrichia.
• spotted l. — seen mainly in Arabian horses; multiple white spots appear, most commonly over the rump and thorax.
• variegated l. — see reticulated leukotrichia (above).