Primary Secretory Otitis Media PSOM and the Cavalier King Charles Spaniel

Primary secretory otitis media (PSOM) — also known as “glue ear” or “middle ear effusion” or “otitis media with effusion” (OME) — has become more frequently diagnosed in cavalier King Charles spaniels recently. It consists of a highly viscous mucus plug which fills the dog’s middle ear and may cause the tympanic membrane to bulge.

Primary Secretory Otitis Media PSOM and the Cavalier King Charles Spaniel.