Question

A 35-year-old woman presented to the clinic with the symptoms of hearing loss and pulsatile tinnitus. Further examination reveals conductive hearing loss with the Rinne test negative. A reddish mass is seen behind the tympanic membrane. What is the most likely diagnosis for this patient?

• A. Acute otitis media
• B. Chronic otitis media
• C. Glomus tumor
• D. Serous otitis media

Hint:

Glomus tumors are rare but should be considered in patients presenting with pulsatile tinnitus and a reddish mass behind the tympanic membrane. Early diagnosis is important to prevent complications.

Answer 1

The Correct Option is C

The symptoms described in the question — conductive hearing loss, pulsatile tinnitus, and a reddish mass behind the tympanic membrane — are highly suggestive of a glomus tumor. These tumors are vascular, slow-growing masses that arise from the glomus bodies, which are specialized vascular structures involved in regulating blood flow. They can occur in the middle ear, and the typical presentation includes:
Pulsatile tinnitus: This is often associated with glomus tumors because of the blood flow within the tumor, which produces a pulsing sound that the patient hears.
Conductive hearing loss: The tumor can obstruct the middle ear space, preventing the normal conduction of sound, leading to hearing loss.
Reddish mass behind the tympanic membrane: This is characteristic of glomus tumors, as they are highly vascular and can cause the tympanic membrane to appear red or bluish.
Other differential diagnoses:
Acute otitis media typically presents with pain, fever, and a bulging tympanic membrane, but not a mass behind the tympanic membrane.
Chronic otitis media involves long-term ear infections that can lead to a perforated tympanic membrane but does not present with a pulsatile mass.
Serous otitis media (also called otitis media with effusion) presents with fluid behind the tympanic membrane but lacks the pulsatile tinnitus and mass described in this case. Thus, the correct diagnosis is Glomus tumor.