Cutaneous-evoked tinnitus: first reported case without preceding posterior fossa surgery

Area of Science:

• Otolaryngology
• Neurology
• Dermatology

Background:

• Tinnitus, often perceived as a ringing in the ears, can have various causes.
• Posterior fossa surgery is a known, though infrequent, cause of somatosensory tinnitus.
• The case explores a novel trigger for tinnitus, distinct from surgical interventions.

Observation:

• A 56-year-old physician experienced brief, clicking tinnitus in his right ear.
• The tinnitus was consistently evoked by tactile stimulation of a specific spot on his right scapula.
• The patient had a history of cervical spondylosis and mild, high-frequency sensorineural hearing loss.

Findings:

• This represents the first documented instance of cutaneous-evoked tinnitus without a history of posterior fossa surgery.
• The somatosensory nature of the tinnitus suggests a link between skin sensation and auditory perception.
• Similarities to somatosensory Mitempfindung (a form of tinnitus linked to body sensations) were noted.

Implications:

• This case suggests that tinnitus triggered by non-auditory stimuli (somatosensory tinnitus) might be underdiagnosed.
• Further research into the connection between the somatosensory system and tinnitus is warranted.
• This understanding could lead to new diagnostic and therapeutic approaches for specific tinnitus subtypes.