Primary Secretory Otitis Media (PSOM)
Primary secretory otitis media is a disease process that results in fluid accumulation within the tympanic cavity.
Age of Onset: Typically, dogs between the ages of 2 and 10 years are affected.
Sex Predisposition: Any sex of animal can be affected
Clinical Course:
Clinical signs may worsen over time, over the course of the dogs life they will likely experience recurrent episodes
Clinical signs may worsen over time, over the course of the dogs life they will likely experience recurrent episodes
Clinical Signs:
Behavioral/Mental Awareness
Fatigue
Repetitive yawning
Posture and Appearance
Guarded horizontal neck carriage
Head tilt
Movement
Ataxia
Cranial Nerves
Deafness
Facial paralysis
Nystagmus
Special functions (e.g. respiration; urination)
Horner's Syndrome
Painful Reactions
Pain localized to the head or neck (most common presenting sign)
Painful ears
Spontaneous episodes of vocalization
Other
Pruritus around the ears without otitis externa
Otitis externa
Bulging of the pars flaccida of the tympanic membrane noted via otoscopic exam
Behavioral/Mental Awareness
Fatigue
Repetitive yawning
Posture and Appearance
Guarded horizontal neck carriage
Head tilt
Movement
Ataxia
Cranial Nerves
Deafness
Facial paralysis
Nystagmus
Special functions (e.g. respiration; urination)
Horner's Syndrome
Painful Reactions
Pain localized to the head or neck (most common presenting sign)
Painful ears
Spontaneous episodes of vocalization
Other
Pruritus around the ears without otitis externa
Otitis externa
Bulging of the pars flaccida of the tympanic membrane noted via otoscopic exam
Middle ear cavity
Unknown
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