Squamous Cell Carcinoma of the Oral Cavity in an Infant Cynomolgus Monkey

摘要

Squamous cell carcinoma was observed in the oral cavity in a one-type-old male cynomolgus monkey. Histopathologically, the tumor consisted of various shaped cells and its assemblies infiltrated into the surrounding connective tissues. Although no obvious metaplastic keratinized cancer pearls were found in the tumor cells, the intercellular bridges were observed. Immunohistochemically, tumor cells were stained with anti-keratin, but not with anti-vimentin.