M THE DAILY INSIGHT
// updates

What is intralabyrinthine?

By Michael Gray

Vestibular schwannoma is one of the common benign tumors that arise from the vestibulocochlear nerve. It is termed intralabyrinthine schwannoma (ILS) when the tumor is originated from the Schwann cells surrounding the terminal branch of the vestibulocochlear nerve inside the membranous labyrinth (1, 2).

What is a cochlear schwannoma?

Cochlear schwannomas are rare benign neoplasms which arise in the cerebellopontine angle, internal auditory canal, or within the cochlea. These tumors are typically slow growing especially when they reside within the otic capsule.

What is Intralabyrinthine schwannoma?

Intralabyrinthine schwannoma’s are a rare variant of an inner ear tumor — acoustic neuromas. Acoustic neuromas (follow link for far more information), also known as vestibular schwannomas, are non-malignant tumors of the 8th cranial nerve.

What are schwannoma symptoms?

What are the symptoms of schwannomas?

  • A visible lump.
  • Numbness.
  • Muscle weakness.
  • Pins-and-needles feeling.
  • Night-time back or neck pain.
  • Pains that are aching, burning or sharp.

What is intralab labyrinthine schwannoma?

intralabyrinthine schwannomas. Schwannoma is a benign neoplasm of the nerve sheath and is the most common neoplasm of the IAC and CPA. “Acoustic” schwannomas most often arise from the vestibular division of the vestibulocochlear nerve.

What are the treatment options for intraacoustic carcinoma (IAC) schwannoma?

Treatment of patients with simple IAC schwannomas involves surgical resection with a goal of preserving hearing and facial nerve function.

What is the pathophysiology of schwannoma?

Schwannoma is a benign neoplasm of the nerve sheath and is the most common neoplasm of the IAC and CPA. “Acoustic” schwannomas most often arise from the vestibular division of the vestibulocochlear nerve. These tumors arise from the perineural Schwann cells surrounding the vestibular and cochlear nerves.

What is an acoustic schwannoma?

Schwannoma is a benign neoplasm of the nerve sheath and is the most common neoplasm of the IAC and CPA. “Acoustic” schwannomas most often arise from the vestibular division of the vestibulocochlear nerve.