Basal cell tumors in dogs.

In a review of neoplasm registry records at Kansas State University (1961 through 1971), 140 basal cell tumors were reported in 32 breeds of dogs, representing 4.3% of 3,230 neoplasms recorded. Mean age of the affected dogs was 6.4 years. The tumors were removed surgically for biopsy in all dogs, 10 of which then had recurrences without metastasis, and required further surgery. The head, neck, and shoulder were a principal site (61%) of basal cell tumors in the dog.