UCVM Online Pathology Collection

UCVM Online Pathology Collection

G-CP-016
CN: 22-1028
Species: Wild Mammal, Caribou

Specimen:
Muzzle
Shown:
Severe necroulcerative cheilitis caused by Onchocerca spp.
Plain-Language Description:
A thin slice of tissue from the lips is looked at under the microscope to view the worms (arrows) that are causing the infection.
Pathology Description:
Histology image of abundant filaroid nematodes in the subcutaneous tissues of the lip

More from this Case

Wild Mammal, Caribou: Muzzle. Severe necroulcerative cheilitis caused by Onchocerca spp. .

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Wild Mammal, Muskox: Head. Primary infection of contagious echthyma (Orf virus) causing a proliferative dermatitis and cheilitis. Damage to skin barrier leading to secondary bacterial infection primarily characterized by Corynebacterium freneyi, causing suppurative lymphadenitis and cellulitis of the head eventually leading to terminal septicemia..