Squamous cell carcinoma in a free-ranging bighorn sheep (Ovis canadensis californiana).
An oral squamous cell carcinoma which invaded maxillary bones with metastasis to the right retropharyngeal lymph node was diagnosed in a free-ranging California bighorn sheep (Ovis canadensis californiana) from Washington. Much of the maxillae had been replaced with tumor and reactive tissue, and many teeth were missing or loose. The tumor was predominantly confined to the shape of the maxillary bones and was unusual because it was bilaterally symmetrical.
Foreyt
W J
WJ
Department of Veterinary Microbiology and Pathology, Washington State University, Pullman 99164.
Hullinger
G A
GA
Leathers
C W
CW
D000818:Animals; D002294:Carcinoma, Squamous Cell / Q000473:pathology / Q000662:veterinary*; D005260:Female; D008207:Lymphatic Metastasis; D008441:Maxillary Neoplasms / Q000473:pathology / Q000662:veterinary*; D012418:Ruminants