Sinus Tumors of Bighorn Sheep
What is this disease?
- Tumors grow from the lining of the sinuses in the:
- Forehead
- Horns
- And above the teeth
- Tumors typically cannot be seen from the outside of the head
- Destroys bone, produces thickened sinus lining, gelatinous tissue, mucus and pus
- Unknown cause, but likely an infectious disease that is spread between sheep
- Found in all 3 subspecies of bighorn sheep and in herds from at least 6states, including Nevada
- No known human health risk
For more information: Sinus Tumors of Bighorn Sheep