Mucormycosis MRI: Difference between revisions
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[[Image:Black_turbinate_sign2.jpg|right|frame|Black turbinate sign in rhinocerebral mucormycosis (devitalization of the [[Sinus & Nose|sinonasal]] [[Mucous membrane|mucosa]] caused by [[mycotic]] [[vascular]] invasion]] | |||
{{Mucormycosis}} | {{Mucormycosis}} | ||
{{CMG}}; {{AE}}{{HK}} | {{CMG}}; {{AE}}{{HK}} | ||
==Overview== | ==Overview== | ||
MRI in mucormycosis tends to show isotense or hypointense in all sequences. The black turbinate sign is an important finding in rhinocerebral involvement. | |||
==Key MRI Findings in Mucormycosis== | ==Key MRI Findings in Mucormycosis== | ||
MRI in rhinocerebral mucormycosis may demonstrate:<ref name="pmid19721767">{{cite journal |vauthors=Herrera DA, Dublin AB, Ormsby EL, Aminpour S, Howell LP |title=Imaging findings of rhinocerebral mucormycosis |journal=Skull Base |volume=19 |issue=2 |pages=117–25 |year=2009 |pmid=19721767 |pmc=2671302 |doi=10.1055/s-0028-1096209 |url=}}</ref> | MRI in rhinocerebral mucormycosis may demonstrate:<ref name="pmid19721767">{{cite journal |vauthors=Herrera DA, Dublin AB, Ormsby EL, Aminpour S, Howell LP |title=Imaging findings of rhinocerebral mucormycosis |journal=Skull Base |volume=19 |issue=2 |pages=117–25 |year=2009 |pmid=19721767 |pmc=2671302 |doi=10.1055/s-0028-1096209 |url=}}</ref> | ||
*Black turbinate sign (devitalization of the sinonasal mucosa caused by mycotic vascular invasion) | *Black turbinate sign (devitalization of the [[Sinus & Nose|sinonasal]] [[Mucous membrane|mucosa]] caused by [[mycotic]] [[vascular]] invasion). | ||
*MRI signal intensity of mucormycosis lesions tends to be isointense or hypointense in all sequences | *[[Magnetic resonance imaging|MRI]] signal intensity of mucormycosis lesions tends to be isointense or hypointense in all sequences. | ||
*Gadolinium | *[[Gadolinium]] contrast shows the lesions to have variable enhancement patterns ranging from [[homogeneous]] to heterogenous or non-enhancing at all. | ||
*Contrast-enhanced T1-weighted images are helpful in | *Contrast-enhanced T1-weighted images are helpful in establishing the intracranial spread when [[meningeal]] enhancement is present as well as in identifying invasion of the [[Cavernous sinus|cavernous]] portion of the [[internal carotid artery]] by the disease. | ||
==References== | ==References== | ||
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Latest revision as of 22:46, 29 July 2020
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Mucormycosis Microchapters |
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Diagnosis |
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Treatment |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Syed Hassan A. Kazmi BSc, MD [2]
Overview
MRI in mucormycosis tends to show isotense or hypointense in all sequences. The black turbinate sign is an important finding in rhinocerebral involvement.
Key MRI Findings in Mucormycosis
MRI in rhinocerebral mucormycosis may demonstrate:[1]
- Black turbinate sign (devitalization of the sinonasal mucosa caused by mycotic vascular invasion).
- MRI signal intensity of mucormycosis lesions tends to be isointense or hypointense in all sequences.
- Gadolinium contrast shows the lesions to have variable enhancement patterns ranging from homogeneous to heterogenous or non-enhancing at all.
- Contrast-enhanced T1-weighted images are helpful in establishing the intracranial spread when meningeal enhancement is present as well as in identifying invasion of the cavernous portion of the internal carotid artery by the disease.
References
- ↑ Herrera DA, Dublin AB, Ormsby EL, Aminpour S, Howell LP (2009). "Imaging findings of rhinocerebral mucormycosis". Skull Base. 19 (2): 117–25. doi:10.1055/s-0028-1096209. PMC 2671302. PMID 19721767.