Presenter Disclosure Information Felipe Santos The ... … · Presenter Disclosure Information...
Transcript of Presenter Disclosure Information Felipe Santos The ... … · Presenter Disclosure Information...
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Presenter Disclosure Information
Felipe Santos
The following relationships exist related to thispresentation: No relationships to disclose
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Clinical and HistopathologicalFeatures of Intralabyrinthine
Schwannomas
Felipe Santos, Fred H. Linthicum, John W. House and Eric P.Wilkinson
House ClinicLos Angeles, CA
R24 DC 008625 NIDCD/NIH
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Case 1
• 43 y.o. female
• Hearing Loss
• Tinnitus
• 3 episodes ofvertigo nowresolved
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Imaging
T1 with Gadolinium CISS
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HEARING LOSS 100%
TINNITUS 96%
EPISODIC DIZZINESS 58%
VERTIGO 46%
HEADACHE 25%
AURAL FULLNESS 8%
OTALGIA 4%
Symptoms Location
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Hearing at Presentation
Mixed 25%
Sudden 25%
Progressive 75%
AAOHNS Class A 33%
AAOHNS Class B 29%
AAOHNS Class D 38%
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loss of spiral ganglion cells hydrops
loss of hair cells loss of dendrites
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saccule rupturestria vascularis atrophy
saccule distension middle ear extension
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MANAGEMENT
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Conclusions
• Hearing loss is the most common symptom with intralabyrinthineschwannomas. The hearing loss may be progressive, or sudden andinitially may be mixed.
• Histopathology of intralabyrinthine schwannomas reveals neural,cellular and membranous degeneration.
• Hearing preservation strategies, including observation, may beconsidered for management of these tumors prior to definitive resection.