Acoustic neuroma differential diagnosis: Difference between revisions
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==Differential Diagnosis== | ==Differential Diagnosis== | ||
The most frequent differential to be considered are: | The most frequent differential to be considered are: | ||
{| style="border: 0px; font-size: 90%; margin: 3px; width: 500px;" align=center | |||
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! style="background: #4479BA; width: 200px;" | {{fontcolor|#FFF|Severity}} | |||
! style="background: #4479BA; width: 200px;" | {{fontcolor|#FFF|Levels of Factor VIII (8) | |||
or IX (9) in the blood}} | |||
! style="background: #4479BA; width: 200px;" | {{fontcolor|#FFF|Levels of Factor VIII (8) | |||
or IX (9) in the blood}} | |||
|- | |||
| style="padding: 5px 5px; background: #DCDCDC; font-weight: bold" | Normal (person who does not have hemophilia) | |||
| style="padding: 5px 5px; background: #F5F5F5;" |50% to 100% | |||
| style="padding: 5px 5px; background: #F5F5F5;" |50% to 100% | |||
|- | |||
| style="padding: 5px 5px; background: #DCDCDC; font-weight: bold" | Mild hemophilia | |||
| style="padding: 5px 5px; background: #F5F5F5;" |Greater than 5% but less than 50% | |||
| style="padding: 5px 5px; background: #F5F5F5;" |50% to 100% | |||
|- | |||
| style="padding: 5px 5px; background: #DCDCDC; font-weight: bold" | Moderate hemophilia | |||
| style="padding: 5px 5px; background: #F5F5F5;" |1% to 5% | |||
| style="padding: 5px 5px; background: #F5F5F5;" |50% to 100% | |||
|- | |||
| style="padding: 5px 5px; background: #DCDCDC; font-weight: bold" | Severe hemophilia | |||
| style="padding: 5px 5px; background: #F5F5F5;" |Less than 1% | |||
| style="padding: 5px 5px; background: #F5F5F5;" |50% to 100% | |||
|} | |||
*Meningioma | *Meningioma | ||
usually more homogeneous in appearance: significant signal heterogeneity with cystic or haemorrhagic areas is more typical of vestibular schwannoma than meningiomas (although cystic meningiomas do occur) | usually more homogeneous in appearance: significant signal heterogeneity with cystic or haemorrhagic areas is more typical of vestibular schwannoma than meningiomas (although cystic meningiomas do occur) | ||
Revision as of 16:24, 16 September 2015
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Acoustic neuroma Microchapters | |
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Acoustic neuroma differential diagnosis On the Web | |
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American Roentgen Ray Society Images of Acoustic neuroma differential diagnosis | |
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Risk calculators and risk factors for Acoustic neuroma differential diagnosis | |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Simrat Sarai, M.D. [2]
Overview
Differential Diagnosis
The most frequent differential to be considered are:
| Severity | Levels of Factor VIII (8)
or IX (9) in the blood |
Levels of Factor VIII (8)
or IX (9) in the blood |
|---|---|---|
| Normal (person who does not have hemophilia) | 50% to 100% | 50% to 100% |
| Mild hemophilia | Greater than 5% but less than 50% | 50% to 100% |
| Moderate hemophilia | 1% to 5% | 50% to 100% |
| Severe hemophilia | Less than 1% | 50% to 100% |
- Meningioma
usually more homogeneous in appearance: significant signal heterogeneity with cystic or haemorrhagic areas is more typical of vestibular schwannoma than meningiomas (although cystic meningiomas do occur) meningiomas tend to have a broad dural base usually lack trumpet IAM sign calcification more common epidermoid no enhancing component very high signal on DWI does not widen the IAC metastasis uncommon usually does not remodel the IAC as metastases are usually present for only a short time ependymoma centered on the fourth ventricle does not extend into the IAC usually younger patients