Pheochromocytoma MRI: Difference between revisions
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[[Head]], [[neck]], [[chest]], and [[abdomen|abdominal]] MRI may be helpful in the diagnosis of pheochromocytoma. | [[Head]], [[neck]], [[chest]], and [[abdomen|abdominal]] MRI may be helpful in the diagnosis of pheochromocytoma. | ||
==Key MRI Findings in Pheochromocytoma== | ==Key MRI Findings in Pheochromocytoma== | ||
*Key [[MRI]] findings in pheochromocytoma are: | *Key [[MRI]] findings in pheochromocytoma are:<ref name="radiopaedia"> http://radiopaedia.org/articles/pheochromocytoma-2 </ref> | ||
:*[[T1]] slightly hypointense to the remainder of the adrenal gland, if there is a necrosis and/or haemorrhage then the signal will be more heterogeneous | :*[[T1]] slightly hypointense to the remainder of the adrenal gland, if there is a necrosis and/or haemorrhage then the signal will be more heterogeneous | ||
:*T2 markedly hyperintense (lightbulb sign, helpful in the diagnosis), areas of necrosis/haemorrhage/calcification will alter signal | :*T2 markedly hyperintense (lightbulb sign, helpful in the diagnosis), areas of necrosis/haemorrhage/calcification will alter signal | ||
Revision as of 15:15, 11 September 2015
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Pheochromocytoma Microchapters |
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Diagnosis |
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Treatment |
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Case Studies |
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Pheochromocytoma MRI On the Web |
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American Roentgen Ray Society Images of Pheochromocytoma MRI |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Ahmad Al Maradni, M.D. [2]
Overview
Head, neck, chest, and abdominal MRI may be helpful in the diagnosis of pheochromocytoma.
Key MRI Findings in Pheochromocytoma
- T1 slightly hypointense to the remainder of the adrenal gland, if there is a necrosis and/or haemorrhage then the signal will be more heterogeneous
- T2 markedly hyperintense (lightbulb sign, helpful in the diagnosis), areas of necrosis/haemorrhage/calcification will alter signal
- T1 C+ (Gd) heterogenous enhancement is prolonged, persisting for as long as 50 minutes 4
Patient #1: Bladder pheochromocytoma
Patient #2: Abdominal pheochromocytoma
