Extramedullary plasmacytoma of the oral cavity metastasising to both kidneys in a dog.

Background: Most extramedullary plasmacytomas (EMPs) aresolitary and located in the head and neck region. They may also occur in the visceral parts of the body.

Objectives: Here, we report a case of oral EMP followed by neoplastic plasma cell metastasis to both kidneys in a neutered male Pomeranian.