A seven-year-old, entire male, American Staffordshire bull terrier was diagnosed with chronic solar dermatitis and basal cell carcinoma, based on physical examination, cutaneous cytology and histopathology. Immunohistochemistry revealed that the tumour cells did not express p53. To the authors' knowledge this is the first reported case of canine basal cell carcinoma developing as a complication of chronic solar dermatitis.
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