Epidermal changes caused by squirrel poxvirus.
D000818:Animals; D005350:Fibroma / Q000662:veterinary*; D008854:Microscopy, Electron; D011213:Poxviridae Infections / Q000473:pathology / Q000662:veterinary*; D012589:Sciuridae; D012878:Skin Neoplasms / Q000473:pathology / Q000662:veterinary*