Cancers and Tumors That Present with Tinnitus
Several tumor types can cause tinnitus, most commonly vestibular schwannomas (acoustic neuromas), followed by meningiomas, glomus tumors (paragangliomas), middle ear adenomatous tumors, and rarely metastatic disease to the skull base.
Primary Tumor Types Associated with Tinnitus
Vestibular Schwannomas (Acoustic Neuromas)
- Most common tumor causing tinnitus, representing over 80% of cerebellopontine angle tumors 1
- Present with unilateral sensorineural hearing loss (94% of cases) and tinnitus (83% of cases) 1
- Can occur bilaterally in neurofibromatosis type 2 (NF2), affecting 4-6% of vestibular schwannoma patients 1
- Unilateral or asymmetric nonpulsatile tinnitus should prompt evaluation for retrocochlear lesions like vestibular schwannomas 2
Meningiomas
- Third most common intracranial nonmalignant tumor after meningiomas and pituitary adenomas 1
- Can cause tinnitus when located in the cerebellopontine angle or petrous bone 3
- Ectopic meningiomas in the petrous bone specifically can compress cranial nerves and cause tinnitus 3
Paragangliomas (Glomus Tumors)
- Glomus tympanicum and glomus jugulotympanicum are common causes of pulsatile tinnitus 2
- Generally benign, slow-growing tumors that cause pulsatile tinnitus, hearing loss, and cranial nerve neuropathy 4
- Visible as vascular retrotympanic lesions on otoscopy 2
Middle Ear Adenomatous Tumors
- Rare tumors that cause nonpulsatile tinnitus 2
- Show contrast enhancement on MRI and CT but no vascular blush on angiography 2
- Present as retrotympanic masses on otoscopic examination 2
Intralabyrinthine Schwannomas
- Rare tumors that frequently cause sensorineural hearing loss and tinnitus 5
- Present with nondiscriminant symptoms including tinnitus, vertigo, and hearing loss 5
Endolymphatic Sac Tumors (ELST)
- Originate in the vestibular recess and can cause tinnitus 3
- Associated with von Hippel-Lindau disease when occurring with other abdominal tumors 3
Metastatic Disease
Skull Base Metastases
- Metastatic breast carcinoma can present as unilateral pulsatile tinnitus 6
- History of malignancy plus new cranial nerve palsies should raise suspicion for skull base metastases 6
- Can appear as middle ear masses visible on otoscopy 6
Clinical Approach by Tinnitus Type
Pulsatile Tinnitus
- Vascular retrotympanic lesions are the primary concern: glomus tympanicum, glomus jugulotympanicum, aberrant internal carotid artery, persistent stapedial artery, and dehiscent jugular bulb 2
- Always consider metastatic disease, especially with history of malignancy 6
Nonpulsatile Tinnitus
- Cerebellopontine angle tumors (vestibular schwannomas, meningiomas) are the main concern 2
- Middle ear adenomatous tumors should be considered if retrotympanic mass is visible 2
- Unilateral or asymmetric nonpulsatile tinnitus with neurological, otological, or head/neck symptoms is more likely to have underlying tumor pathology than bilateral tinnitus 2
Critical Clinical Pearls
When Imaging Is NOT Indicated
- AAO-HNS guidelines strongly recommend against imaging for tinnitus that does not localize to one ear, is nonpulsatile, and has no focal neurological abnormalities or asymmetric hearing loss 2
When Imaging IS Indicated
- Unilateral or asymmetric tinnitus 2
- Pulsatile tinnitus 2
- Associated neurological deficits 2
- Asymmetric hearing loss 2
- Visible retrotympanic lesion on otoscopy 2
Common Pitfall
- Do not dismiss pulsatile tinnitus as benign, especially in patients with cancer history—metastatic disease can present this way before other symptoms develop 6