A giant congenital pigmented nevus in a horse.
Pigmented nevi have not been widely recognized in domesticated animals. We describe, for the first time, a giant congenital pigmented nevus in a horse. Because of a prominent neuroid component within the lesion, neurofibromatosis was the major differential diagnosis.
D000818:Animals; D003937:Diagnosis, Differential; D005260:Female; D006734:Horse Diseases / Q000151:congenital* / Q000473:pathology; D006736:Horses; D009455:Neurofibroma / Q000473:pathology; D009508:Nevus, Pigmented / Q000151:congenital / Q000473:pathology / Q000662:veterinary*; D012878:Skin Neoplasms / Q000151:congenital / Q000473:pathology / Q000662:veterinary*