A reddish pulsatile mass beyond tympanic membrane: think before act.

Area of Science:

• Otolaryngology
• Neurosurgery
• Radiology

Background:

• Glomus tumors, also known as paragangliomas, are rare, slow-growing neoplasms that can arise in the middle ear.
• These tumors are typically benign but can cause significant symptoms due to their vascularity and proximity to cranial nerves.

Observation:

• A 76-year-old male presented with progressive right-sided hearing loss, aural fullness, and pulsatile tinnitus.
• Otoscopic examination revealed a reddish, pulsatile mass behind the tympanic membrane.
• Imaging studies, including CT and MRI, confirmed a Class C glomus tumor.

Findings:

• The case highlights the diagnostic challenge posed by glomus tumors presenting with typical symptoms of middle ear pathology.
• Class C glomus tumors, as identified in this case, often require advanced imaging for accurate characterization.
• The pulsatile nature of the tinnitus, synchronized with the heartbeat, was a key indicator of a vascular lesion.

Implications:

• Accurate and timely diagnosis of middle ear glomus tumors is essential to prevent complications and guide appropriate treatment.
• A thorough medical history and physical examination, including careful differential diagnosis, are critical before any invasive procedures.
• This case underscores the importance of considering vascular tumors in the differential diagnosis of pulsatile tinnitus and hearing loss.