Leiomyosarcoma MRI: Difference between revisions

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{{Leiomyosarcoma}}
{{Leiomyosarcoma}}
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{{CMG}}{{AE}} {{Nnasiri}}
 
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==Overview==
==Overview==


[[MRI]] is usefull diagnostic tool for detecting tumor's spread to [[lymph nodes]] or internal organs in [[pelvic]] or [[abdomen]], it also has a valuable role in follow-up for the evaluation for [[tumor]] recurrence. Findings on [[MRI]] of patients with leiomyosarcoma can be heterogenous [[mass]] with irregular borders.


==MRI==
== MRI ==
An MRI uses magnetic fields but it is a different type of image than what is produced by computed tomography (CT) and produces detailed images of the body. Like computed tomography (CT), a contrast agent may be injected into a patient’s vein to create a better picture.On MRI,Leiomyosarcomas commonly manifest as large infiltrating mass of heterogeneous hypo intensity on T1-weighted images,with irregular and ill-defined margins.On T2-weighted images,they usually show intermediate-to-high signal intensity, with central hyper intensity indicative of extensive necrosis.Hemorrhage is common and foci of calcification may be present.
On T1-weighted images of [[MRI]], leiomyosarcomas has the following descriptions:
* large infiltrating myometrial [[mass]] of heterogeneous hypointensity with irregular margins.
On T2-weighted images, [[tumor]]<nowiki/>s have the following features:
* Intermediate-to-high signal intensity, with central hyperintensity indicative of extensive [[necrosis]].  
* [[Hemorrhage]] is common and [[calcification]] may be present.<ref name="pmid3750612">Bretan PN, Williams RD, Hricak H (1986) [https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&retmode=ref&cmd=prlinks&id=3750612 Preoperative assessment of retroperitoneal pathology by magnetic resonance imaging. Primary leiomyosarcoma of inferior vena cava.] ''Urology'' 28 (3):251-5. PMID: [https://pubmed.gov/3750612 3750612]</ref>


==References==
==References==

Latest revision as of 14:27, 15 March 2019

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Nima Nasiri, M.D.[2]

Overview

MRI is usefull diagnostic tool for detecting tumor's spread to lymph nodes or internal organs in pelvic or abdomen, it also has a valuable role in follow-up for the evaluation for tumor recurrence. Findings on MRI of patients with leiomyosarcoma can be heterogenous mass with irregular borders.

MRI

On T1-weighted images of MRI, leiomyosarcomas has the following descriptions:

  • large infiltrating myometrial mass of heterogeneous hypointensity with irregular margins.

On T2-weighted images, tumors have the following features:

References


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