What is your diagnosis? Large perianal mass in a dog

Vet Clin Pathol. 2023 May 30. doi: 10.1111/vcp.13231. Online ahead of print.
No abstract available

Keywords: apocrine gland anal sac adenocarcinoma; canine; epithelial-mesenchymal transition; hypercalcemia; immunohistochemistry; skin.