CUTANEOUS HORN AND SQUAMOUS-CELL CARCINOMA IN-SITU (BOWENS-DISEASE) IN A CAT

Cutaneous horn and squamous cell carcinoma (SCC) in situ (i.e., Bowen' s disease) were documented concurrently in a cat. The cat had multiple , crusted lesions and a cutaneous horn on the right dorsal lumbar area . All the crusted cutaneous lesions were diagnosed as SCC in situ. Oth er findings included the presence of a thymoma and hepatoma. This cat was tested, and results were negative for feline leukemia and feline i mmunodeficiency viruses. At necropsy (eight months after the initial d iagnosis was made) the hepatoma had ruptured, resulting in exsanguinat ion and death.