Leiomyosarcoma MRI: Difference between revisions
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__NOTOC__ | __NOTOC__ | ||
{{Leiomyosarcoma}} | {{Leiomyosarcoma}} | ||
{{CMG}}{{AE}} {{ | {{CMG}}{{AE}} {{Nnasiri}} | ||
==Overview== | ==Overview== | ||
MRI is an imaging method using signal detection from spinning protons exposed to a magnetic field and offers superior soft tissue contrast to and better evaluation of tumor size, spread, and neurovascular involvement than CT.It also has a valuable role in follow-up for the evaluation for tumor recurrence.<ref name="pmid28057392">Messiou C, Moskovic E, Vanel D, Morosi C, Benchimol R, Strauss D et al. (2017) [https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&retmode=ref&cmd=prlinks&id=28057392 Primary retroperitoneal soft tissue sarcoma: Imaging appearances, pitfalls and diagnostic algorithm.] ''Eur J Surg Oncol'' 43 (7):1191-1198. [http://dx.doi.org/10.1016/j.ejso.2016.10.032 DOI:10.1016/j.ejso.2016.10.032] PMID: [https://pubmed.gov/28057392 28057392]</ref> | MRI is an imaging method using signal detection from spinning protons exposed to a magnetic field and offers superior soft tissue contrast to and better evaluation of tumor size, spread, and neurovascular involvement than CT.It also has a valuable role in follow-up for the evaluation for tumor recurrence.<ref name="pmid28057392">Messiou C, Moskovic E, Vanel D, Morosi C, Benchimol R, Strauss D et al. (2017) [https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&retmode=ref&cmd=prlinks&id=28057392 Primary retroperitoneal soft tissue sarcoma: Imaging appearances, pitfalls, and diagnostic algorithm.] ''Eur J Surg Oncol'' 43 (7):1191-1198. [http://dx.doi.org/10.1016/j.ejso.2016.10.032 DOI:10.1016/j.ejso.2016.10.032] PMID: [https://pubmed.gov/28057392 28057392]</ref> | ||
== MRI == | == MRI == | ||
* On T1-weighted images of MRI, Leiomyosarcomas commonly manifest as large infiltrating mass of heterogeneous | * On T1-weighted images of MRI, Leiomyosarcomas commonly manifest as large infiltrating mass of heterogeneous hypointensity with irregular and ill-defined margins. | ||
* On T2-weighted images,they usually show intermediate-to-high signal intensity, with central | * On T2-weighted images, they usually show intermediate-to-high signal intensity, with central hyperintensity indicative of extensive necrosis. Hemorrhage is common and foci of 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== | ||
Revision as of 15:34, 5 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 an imaging method using signal detection from spinning protons exposed to a magnetic field and offers superior soft tissue contrast to and better evaluation of tumor size, spread, and neurovascular involvement than CT.It also has a valuable role in follow-up for the evaluation for tumor recurrence.[1]
MRI
- On T1-weighted images of MRI, Leiomyosarcomas commonly manifest as large infiltrating mass of heterogeneous hypointensity with irregular and ill-defined margins.
- On T2-weighted images, they usually show intermediate-to-high signal intensity, with central hyperintensity indicative of extensive necrosis. Hemorrhage is common and foci of calcification may be present.[2]
References
- ↑ Messiou C, Moskovic E, Vanel D, Morosi C, Benchimol R, Strauss D et al. (2017) Primary retroperitoneal soft tissue sarcoma: Imaging appearances, pitfalls, and diagnostic algorithm. Eur J Surg Oncol 43 (7):1191-1198. DOI:10.1016/j.ejso.2016.10.032 PMID: 28057392
- ↑ Bretan PN, Williams RD, Hricak H (1986) Preoperative assessment of retroperitoneal pathology by magnetic resonance imaging. Primary leiomyosarcoma of inferior vena cava. Urology 28 (3):251-5. PMID: 3750612