Sialolithiasis MRI: Difference between revisions
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==MRI== | ==MRI== | ||
*Head and neck MRI may be helpful in the diagnosis of sialolithiasis. Findings on MRI suggestive of sialolithiasis include: | *Head and neck MRI may be helpful in the diagnosis of sialolithiasis. Findings on MRI suggestive of sialolithiasis include: | ||
**Stones are | **Stones are visible as low signal regions outlined by saliva (high signal regions) on T2 weighted images. | ||
* Acute from chronic obstruction can be distinguished by MRI on T1 signals: | * Acute from chronic obstruction can be distinguished by MRI on T1 signals: | ||
** In acute obstruction, enlargement of gland and [[inflammatory]] changes may be seen as reduced signal compared to other side. | ** In acute obstruction, enlargement of the gland and [[inflammatory]] changes may be seen as reduced signal compared to other side. | ||
** In chronic cases, size of the gland is decreased and fatty atrophy may be seen as an increased signal compared to the other side. | ** In chronic cases, size of the gland is decreased and fatty atrophy may be seen as an increased signal compared to the other side. | ||
Revision as of 16:30, 6 February 2018
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Sialolithiasis Microchapters |
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Diagnosis |
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Treatment |
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Case Studies |
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Sialolithiasis MRI On the Web |
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American Roentgen Ray Society Images of Sialolithiasis MRI |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief:
Overview
Head and neck MRI may be helpful in the diagnosis of sialolithiasis Findings on MRI suggestive of sialolithiasis include low signal regions outlined by saliva ( high signal regions) on T2 weighted images. MRI can distinguished acute from chronic obstruction.
MRI
- Head and neck MRI may be helpful in the diagnosis of sialolithiasis. Findings on MRI suggestive of sialolithiasis include:
- Stones are visible as low signal regions outlined by saliva (high signal regions) on T2 weighted images.
- Acute from chronic obstruction can be distinguished by MRI on T1 signals:
- In acute obstruction, enlargement of the gland and inflammatory changes may be seen as reduced signal compared to other side.
- In chronic cases, size of the gland is decreased and fatty atrophy may be seen as an increased signal compared to the other side.