Early stage of cutaneous squamous cell carcinoma in dog

A four year old Labrador dog with small grayish white rapidly growing mass was presented. Biopsy of growth yielded anaplastic squamous cells. Microscopic examination of excised tumor tissue revealed anaplastic, proliferating squamous cells invading dermis and forming numerous epithelial nests and keratin depositions in the centre. The profile of growth was confirmative of early stage of squamous cell carcinoma (SCC).