Honorable Mention, Cases and Abstracts Category
Hailey Harroun, Colorado State University
SIGNALMENT:
Species: Bovine
Breed: Angus
Age: 8yr
Sex: Female
Reproductive Status: open, 4mo calf at side
Presenting Complaint: Bloody, crusted ear tips, with hair loss and tissue loss
HISTORY:
Only cow in a herd of 30 displaying signs of hair loss on both ear tips with necrosis and loss of tissue. Remaining tissue is thickened and crusted with blood. Ears do not seem particularly painful or pruritic. Cow is currently nursing 4 month old calf, on a diet of alfalfa-mix hay, current on all vaccinations (IBR, BVD, PI3, BRSV, Clostridium). It is currently the end of December, but weather has not been cold enough to indicate frostbite. This condition has been present for two weeks duration, and seems to be progressing, with more necrosis and shortening of ear tips.
PREVIOUS HISTORY OF ILLNESS: none
PHYSICAL EXAM:
Body Weight: 1500lb
Temp: 101F
Heart Rate: 60bpm
Respiration: 25
Skin:normal, except ears
Musculoskeletal:normal
Circulatory:normal
Mucous Membranes:normal
Respiratory:normal clear lung sounds
Digestive:normal rumen and intestinal sounds
Genital/Urinary:normal
Eyes/Ears:eyes normal; ears crusted, bloody, appears to be loss of tissue on the tips
Neurologic:normal
Lymph Nodes:normal

Affected ears
DIFFERENTIALS:
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