0:03 [Music]
0:05 acoustic neuroma also known as
0:08 vestibular schwannoma is a benign tumor
0:10 arising from Schwan cells the cells
0:12 responsible for producing the myelin
0:15 sheath that insulates nerve
0:18 fibers schwannomas can develop along any
0:20 nerve in the body but they have a
0:22 predisposition for the eighth cranial
0:24 nerve also called the vestibular clear
0:27 nerve which sends sensory information
0:29 about hearing in balance from the inner
0:30 ear to to the [Music]
0:32 [Music]
0:35 brain the cause of acoustic neuroma
0:37 isn't clear however a small number are
0:40 related to a condition called
0:42 neurofibromatosis type 2 which causes a
0:45 mutation that allows Schwan cells to
0:50 uncontrollably the most common symptoms
0:53 of acoustic neuromas are tinitus or a
0:55 ringing sound in the ears and gradual
0:58 hearing loss on one side for individuals
1:01 with neuro fibrom is Type 2 acoustic
1:04 neuromas typically occur bilaterally so
1:06 individuals tend to have hearing
1:09 problems in both ears peripheral vertigo
1:11 often described as a sense of imbalance
1:14 or unsteadiness can also occur and it
1:22 onset this is because acoustic neuromas
1:25 grow slowly so the central nervous
1:27 system has time to compensate for the
1:29 loss of balance function making the
1:32 symptom very subtle as a result
1:34 individuals are more likely to notice
1:36 symptoms like hearing loss and idus
1:38 earlier than
1:41 vertigo acoustic neuromas don't
1:43 typically spread to other tissues but if
1:45 they grow large enough they can compress
1:48 nearby structures particularly the
1:55 paralysis diagnosis of acoustic neuroma
1:58 is suspected in individuals with tenius
2:00 one-sided sensory neural hearing loss
2:03 and peripheral vertigo follow-up
2:05 evaluation may include assessment by an
2:07 ENT specialist who may order hearing
2:10 tests and other specific exams to assess
2:12 the Integrity of the vestibulo cocar
2:15 nerve confirmation of the diagnosis is
2:18 usually made via a CT or MRI scan of the
2:21 brain which allows the detection of
2:24 tumors because of its strong Association
2:26 individuals with bilateral acoustic
2:29 neuromas may be recommended genetic
2:31 testing to check for neurofibromatosis type
2:38 2 treatment of acoustic neuromas varies
2:39 depending on the size and growth rate of
2:42 the tumor as well as the individual's
2:44 preferences most acoustic neuromas
2:46 remain stable or grow slowly over
2:49 several years so monitoring can be an
2:51 appropriate option for older individuals
2:59 tumors larger tumors or those causing
3:01 significant and symptoms may need to be
3:03 surgically removed a team of
3:06 neurosurgeons and ENT specialists may
3:08 decide to approach the tumor from behind
3:11 the ear above the ear or through the ear
3:13 with the main risk of surgery being
3:15 hearing loss and damage to the facial
3:18 nerve as an alternative to surgery some
3:20 tumors can be treated with radiation
3:23 therapy which doesn't remove the tumor
3:25 entirely but can be effective at
3:26 stopping its
3:29 growth additionally individuals with
3:31 hearing problems May benefit from
3:33 hearing aids or other assistive devices
3:36 like a clear implant finally to help
3:39 with balance and coordination issues
3:42 vestibular rehabilitation may be needed
3:46 especially after surgery or radiation
3:49 therapy all right as a quick recap
3:51 acoustic neuroma is a benign slow
3:53 growing tumor that develops on the
3:55 cranial nerve responsible for hearing
3:58 imbalance causing symptoms like tinitus
4:01 hearing loss and and
4:04 vertigo diagnosis is usually made via a
4:07 CT or MRI scan and treatment involves
4:10 surgical removal of the tumor radiation
4:12 therapy or watchful observation
4:14 depending on the size and growth rate of
4:34 helping current and future clinicians
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