Pituitary adenoma MRI: Difference between revisions
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*'''T1''' | *'''T1''' | ||
:*typically isointense to grey matter | :*T1 typically isointense to grey matter | ||
:* | :*Larger lesions are often heterogeneous and vary in signal due to areas of cystic change, necrosis, or haemorrhage. | ||
*'''T1 C+ (Gd)''' | *'''T1 C+ (Gd)''' | ||
:*A solid components demonstrates moderate to bright enhancement | :*A solid components demonstrates moderate to bright enhancement. | ||
*T2 | *'''T2''' | ||
:*typically isointense to grey matter | :*T2 typically isointense to grey matter. | ||
:* | :*Larger lesions are often heterogeneous and vary in signal due to areas of cystic change, necrosis, or haemorrhage. | ||
*T2 gradient echo | *'''T2 gradient echo parameters''' | ||
most sensitive for detecting any haemorrhagic components, which appear as areas of signal loss | :*most sensitive for detecting any haemorrhagic components, which appear as areas of signal loss. | ||
calcification is rare, but should be excluded by reviewing CT scans | :*calcification is rare, but should be excluded by reviewing CT scans. | ||
'''Patient #1: Pituitary marcoadenoma''' | '''Patient #1: Pituitary marcoadenoma''' | ||
| Line 51: | Line 51: | ||
Pituitary-macroadenoma-MR-T2-01.jpg|MRI axial T2 | Pituitary-macroadenoma-MR-T2-01.jpg|MRI axial T2 | ||
</gallery> | |||
'''Patient #2: Pituitary marcoadenoma''' | |||
<gallery> | |||
Image: | Image: | ||
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==References== | ==References== | ||
{{Reflist|2}} | {{Reflist|2}} | ||
[[Category:Disease]] | [[Category:Disease]] | ||
[[Category:Endocrinology]] | [[Category:Endocrinology]] | ||
[[Category:Mature chapter]] | [[Category:Mature chapter]] | ||
Revision as of 14:06, 30 September 2015
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Pituitary adenoma Microchapters |
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Diagnosis |
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Treatment |
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Case Studies |
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Pituitary adenoma MRI On the Web |
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American Roentgen Ray Society Images of Pituitary adenoma MRI |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Ahmad Al Maradni, M.D. [2]
Overview
MRI Findings in Pituitary Adenoma
Macroadenoma
- T1
- T1 typically isointense to grey matter
- Larger lesions are often heterogeneous and vary in signal due to areas of cystic change, necrosis, or haemorrhage.
- T1 C+ (Gd)
- A solid components demonstrates moderate to bright enhancement.
- T2
- T2 typically isointense to grey matter.
- Larger lesions are often heterogeneous and vary in signal due to areas of cystic change, necrosis, or haemorrhage.
- T2 gradient echo parameters
- most sensitive for detecting any haemorrhagic components, which appear as areas of signal loss.
- calcification is rare, but should be excluded by reviewing CT scans.
Patient #1: Pituitary marcoadenoma
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MRI axial T1 -
MRI axial TI post-contrast -
MRI sag T1 -
MRI axial FLAIR -
MRI axial T2
Patient #2: Pituitary marcoadenoma
