Desmoid tumor MRI: Difference between revisions

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{{CMG}} {{AE}}{{S.M.}}{{Faizan}}
{{CMG}} {{AE}}{{S.M.}}{{Faizan}}
==Overview==
==Overview==
[[Magnetic resonance imaging|MRI]] is preferred over [[Computed tomography|CT]], especially for truncal and extremity [[Desmoid tumor|desmoid tumors]]. On [[MRI]], [[desmoid tumor]] has variable characteristics depending on their cellularity and [[fibrous]] content with loss of signal following [[fat]] [[saturation]]. They appear isointense/hypointense on [[T1]] and hyperintense on T2.
[[Magnetic resonance imaging|MRI]] is preferred over [[Computed tomography|CT]], especially for [[Trunk|truncal]] and extremity [[Desmoid tumor|desmoid tumors]]. On [[MRI]], [[desmoid tumor]] has variable characteristics depending on their cellularity and [[fibrous]] content with loss of signal following [[fat]] [[saturation]]. They appear isointense/hypointense on [[T1]] and hyperintense on T2.


==MRI==
==MRI==
*MRI is required in order to:
*[[Magnetic resonance imaging|MRI]] is required in order to:
**Define the relationship of the tumor to adjacent structures
**Define the relationship of the [[tumor]] to adjacent structures
**Assess resectability
**Assess resectability
**Find out the need for treatment
**Find out the need for treatment
**Monitor recurrence after surgery  
**[[Monitor (NHS)|Monitor]] [[Recurrence plot|recurrence]] after [[surgery]]
*MRI is preferred over CT, especially for truncal and extremity tumors
*[[Magnetic resonance imaging|MRI]] is preferred over [[Computed tomography|CT]], especially for [[Trunk|truncal]] and extremity [[tumors]]
*MRI characteristics of desmoid tumors are variable depending on their cellularity and fibrous content:<ref name="radio">Desmoid tumor. Radiopedia(2015) http://radiopaedia.org/articles/aggressive-fibromatosis. Accessed on January 20, 2015</ref><ref name="pmid15788583">{{cite journal| author=Azizi L, Balu M, Belkacem A, Lewin M, Tubiana JM, Arrivé L| title=MRI features of mesenteric desmoid tumors in familial adenomatous polyposis. | journal=AJR Am J Roentgenol | year= 2005 | volume= 184 | issue= 4 | pages= 1128-35 | pmid=15788583 | doi=10.2214/ajr.184.4.01841128 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=15788583  }} </ref><ref name="pmid9265665">{{cite journal| author=Vandevenne JE, De Schepper AM, De Beuckeleer L, Van Marck E, Aparisi F, Bloem JL et al.| title=New concepts in understanding evolution of desmoid tumors: MR imaging of 30 lesions. | journal=Eur Radiol | year= 1997 | volume= 7 | issue= 7 | pages= 1013-9 | pmid=9265665 | doi=10.1007/s003300050243 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=9265665  }} </ref><ref name="pmid16357411">{{cite journal| author=Lee JC, Thomas JM, Phillips S, Fisher C, Moskovic E| title=Aggressive fibromatosis: MRI features with pathologic correlation. | journal=AJR Am J Roentgenol | year= 2006 | volume= 186 | issue= 1 | pages= 247-54 | pmid=16357411 | doi=10.2214/AJR.04.1674 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=16357411  }} </ref>
*[[Magnetic resonance imaging|MRI]] characteristics of [[Desmoid tumor|desmoid tumors]] are variable depending on their cellularity and [[fibrous]] content:<ref name="radio">Desmoid tumor. Radiopedia(2015) http://radiopaedia.org/articles/aggressive-fibromatosis. Accessed on January 20, 2015</ref><ref name="pmid15788583">{{cite journal| author=Azizi L, Balu M, Belkacem A, Lewin M, Tubiana JM, Arrivé L| title=MRI features of mesenteric desmoid tumors in familial adenomatous polyposis. | journal=AJR Am J Roentgenol | year= 2005 | volume= 184 | issue= 4 | pages= 1128-35 | pmid=15788583 | doi=10.2214/ajr.184.4.01841128 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=15788583  }} </ref><ref name="pmid9265665">{{cite journal| author=Vandevenne JE, De Schepper AM, De Beuckeleer L, Van Marck E, Aparisi F, Bloem JL et al.| title=New concepts in understanding evolution of desmoid tumors: MR imaging of 30 lesions. | journal=Eur Radiol | year= 1997 | volume= 7 | issue= 7 | pages= 1013-9 | pmid=9265665 | doi=10.1007/s003300050243 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=9265665  }} </ref><ref name="pmid16357411">{{cite journal| author=Lee JC, Thomas JM, Phillips S, Fisher C, Moskovic E| title=Aggressive fibromatosis: MRI features with pathologic correlation. | journal=AJR Am J Roentgenol | year= 2006 | volume= 186 | issue= 1 | pages= 247-54 | pmid=16357411 | doi=10.2214/AJR.04.1674 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=16357411  }} </ref>
{| class="wikitable"
{| class="wikitable"
|+MRI characteristics of desmoid tumors
|+MRI characteristics of desmoid tumors
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|'''T1'''
|'''T1'''
|
|
* Homogeneously isointense
* [[Homogeneous|Homogeneously]] isointense
* Hypointense  
* Hypointense  
* Mildly hyperintense
* Mildly hyperintense
* Low intensity signal
* Low [[Intensity (physics)|intensity]] [[Signal (biology)|signal]]
|-
|-
|'''T1 C+ (Gd)'''
|'''T1 C+ (Gd)'''
Line 31: Line 31:
|'''T2/STIR'''
|'''T2/STIR'''
|
|
* High heterogeneous signal
* High [[heterogeneous]] [[Signal (biology)|signal]]
* Predominantly hyperintense (T2 hyperintensity may diminish over time as tumor cellularity decreases and collagen deposition increases)
* Predominantly hyperintense (T2 hyperintensity may diminish over time as [[tumor]] cellularity decreases and [[collagen]] [[Deposition (chemistry)|deposition]] increases)
*Hypointense bands may be seen that represent dense collections of collagen bundles  
*Hypointense [[bands]] may be seen that represent [[dense]] collections of [[collagen]] bundles  
*With gadolinium administration
*With [[gadolinium]] administration
**Desmoids typically show moderate to marked enhancement
**[[Desmoid tumor|Desmoids]] typically show moderate to marked enhancement
**Hypointense bands may become more apparent because collagen bundles are not enhanced by contrast material
**Hypointense [[bands]] may become more apparent because [[collagen]] bundles are not enhanced by contrast material
|-
|-
|'''GE'''
|'''GE'''
|
|
* Peripheral areas of smooth low signal intensity that do not represent calcification or hemorrhage are characteristic
* Peripheral [[Area|areas]] of smooth low [[Signal (biology)|signal]] [[Intensity (physics)|intensity]] that do not represent [[calcification]] or [[hemorrhage]] are [[Characteristic impedance|characteristic]]
|}
|}
<gallery>MRI_desmoid_T1_fl2d_FS.jpg | MRI of desmoid tumor<ref name=aa>Desmoid Tumor mri. https://en.wikipedia.org/wiki/Aggressive_fibromatosis#/media/File:MRI_desmoid_T1_fl2d_FS.jpg</ref></gallery>
<gallery>MRI_desmoid_T1_fl2d_FS.jpg | MRI of desmoid tumor<ref name=aa>Desmoid Tumor mri. https://en.wikipedia.org/wiki/Aggressive_fibromatosis#/media/File:MRI_desmoid_T1_fl2d_FS.jpg</ref></gallery>

Revision as of 18:41, 13 March 2019

Desmoid tumor Microchapters

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Case #1

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Sara Mohsin, M.D.[2]Faizan Sheraz, M.D. [3]

Overview

MRI is preferred over CT, especially for truncal and extremity desmoid tumors. On MRI, desmoid tumor has variable characteristics depending on their cellularity and fibrous content with loss of signal following fat saturation. They appear isointense/hypointense on T1 and hyperintense on T2.

MRI

MRI characteristics of desmoid tumors
MRI sequence Characteristics
T1
T1 C+ (Gd)
  • Typically enhances avidly
T2/STIR
GE
  • MRI of desmoid tumor[5]

    MRI of desmoid tumor[5]

Reference

  1. ↑ Desmoid tumor. Radiopedia(2015) http://radiopaedia.org/articles/aggressive-fibromatosis. Accessed on January 20, 2015
  2. ↑ Azizi L, Balu M, Belkacem A, Lewin M, Tubiana JM, Arrivé L (2005). "MRI features of mesenteric desmoid tumors in familial adenomatous polyposis". AJR Am J Roentgenol. 184 (4): 1128–35. doi:10.2214/ajr.184.4.01841128. PMID 15788583.
  3. ↑ Vandevenne JE, De Schepper AM, De Beuckeleer L, Van Marck E, Aparisi F, Bloem JL; et al. (1997). "New concepts in understanding evolution of desmoid tumors: MR imaging of 30 lesions". Eur Radiol. 7 (7): 1013–9. doi:10.1007/s003300050243. PMID 9265665.
  4. ↑ Lee JC, Thomas JM, Phillips S, Fisher C, Moskovic E (2006). "Aggressive fibromatosis: MRI features with pathologic correlation". AJR Am J Roentgenol. 186 (1): 247–54. doi:10.2214/AJR.04.1674. PMID 16357411.
  5. ↑ Desmoid Tumor mri. https://en.wikipedia.org/wiki/Aggressive_fibromatosis#/media/File:MRI_desmoid_T1_fl2d_FS.jpg

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