Rhabdomyosarcoma CT: Difference between revisions

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{{Rhabdomyosarcoma}}
{{Rhabdomyosarcoma}}
{{CMG}};{{AE}} {{PSK}}
{{CMG}};{{AE}} {{S.M}}
==Overview==
==Overview==
On CT scan rhabdomyosarcoma is characterized by soft tissue density, enhancement with contrast, and adjacent bone destruction.
[[CT scan]] is considered as one of the first steps for evaluation of [[rhabdomyosarcoma]]. Primary site [[CT scan]], [[chest]] [[CT scan]], [[abdominal]] and [[retroperitoneal]] [[CT scan]] are required for evaluation of [[rhabdomyosarcoma]]. On [[CT scan]], [[rhabdomyosarcoma]] is characterized by [[soft tissue]] [[density]], enhancement with [[contrast]], and [[bone]] destruction.
 
==CT==
==CT==
On CT scan, rhabdomyosarocma is characterized by:
* [[CT scan]] is considered as one of the first steps for evaluation of [[rhabdomyosarcoma]].<ref>Kaseb H, Babiker HM. Cancer, Rhabdomyosarcoma. [Updated 2018 Oct 27]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2018 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK507721/</ref><ref name="pmid8446754">{{cite journal| author=Kransdorf MJ, Jelinek JS, Moser RP| title=Imaging of soft tissue tumors. | journal=Radiol Clin North Am | year= 1993 | volume= 31 | issue= 2 | pages= 359-72 | pmid=8446754 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=8446754  }} </ref>
*Soft tissue density
* The following [[CT scans]] are required in [[rhabdomyosarcoma]]:
*Some enhancement with contrast
** Primary site [[CT scan]]
*Adjacent bony destruction (over 20% of cases)
*** For assessment of [[bone]] erosion and nearby [[lymph node]] involvement
 
*** For assessment of patient's response to treatment
===Rhabdomyosarcoma of biliary tract===
** [[Chest]] [[CT scan]]
*CT may show a heterogenous or hypo-attenuating mass with [[Bile duct|biliary ductal dilatation]].
*** For evaluation of [[metastatic]] [[lesions]]
 
** [[Abdomen]] and [[retroperitoneal]] [[CT scan]] (thin-cut 5 mm sections)
===Rhabdomyosarcoma of the orbit===
*** For assessment of [[retroperitoneal]] nodal involvement in paratesticular [[rhabdomyosarcoma]]
*Rhabdomyosarcomas are typically well-circumscribed, homogeneous [[soft tissue]] masses which are isodense to normal muscle.<ref>{{Cite web | title =Rhabdomyosarcoma imaging| url =http://eyewiki.org/Rhabdomyosarcoma#Anatomic_locations}}</ref>
* Possible [[CT scan]] findings of [[rhabdomyosarcoma]] are:<ref name="urlImaging of Soft Tissue Tumors - Google Books">{{cite web |url=https://books.google.com/books?vid=ISBN3540248099 |title=Imaging of Soft Tissue Tumors - Google Books |format= |work= |accessdate=}}</ref>
*The mass may extend into the [[eyelid]] or through bone into the [[paranasal sinuses]] (especially the ethmoid sinus) and superiorly into the anterior cranial fossa.
** [[Soft tissue]] [[density]]
 
** Enhancement with [[contrast]]
===Cardiac rhabdomyosarcoma===
** [[Bone]] destruction
*CT may show a smooth or irregular low-attenuation mass in a cardiac chamber.
[[File:Rhabdomyosarcoma CT.gif|thumb|center|300px| Rhabdomyosarcoma of the right psoas muscle, right psoas muscle is enlarged, and mildly heterogeneous.[https://radiopaedia.org/ Source:Case courtesy of Dr Ruslan Asadov, Radiopaedia.org, from Radiopedia]]]
 
[[File:Cardiac rhabdomyosarcoma.gif|thumb|center|300px| CT images demonstrate a cardiac rhabdomyosarcoma.[https://radiopaedia.org/ Source:Case courtesy of Radswiki, from Radiopedia]]]
<div align="left">
[[File:Nasal cavity rhabdomyosarcoma.gif|thumb|center|300px|A 20 years old man presented with repeated epistaxis. In the posterior aspect of the right nasal passage a soft tissue mass is present, just posterior to the inferior turbinate.[https://radiopaedia.org/ Source: Case courtesy of A.Prof Frank Gaillard, from Radiopedia]]]
<gallery heights="117" widths="117">
<br style="clear:left" />
Image:Cardiac rhabdomyosarcoma 001.jpg|Cardiac Rhabdomyosarcoma <small>Image courtesy of RadsWiki and copylefted</small>
Image:Cardiac rhabdomyosarcoma 002.jpg|Cardiac Rhabdomyosarcoma <small>Image courtesy of RadsWiki and copylefted</small>
Image:Cardiac rhabdomyosarcoma 003.jpg|Cardiac Rhabdomyosarcoma <small>Image courtesy of RadsWiki and copylefted</small>
</gallery>
</div>


==References==
==References==
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[[Category:Disease]]
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Latest revision as of 21:50, 1 April 2019

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

Overview

CT scan is considered as one of the first steps for evaluation of rhabdomyosarcoma. Primary site CT scan, chest CT scan, abdominal and retroperitoneal CT scan are required for evaluation of rhabdomyosarcoma. On CT scan, rhabdomyosarcoma is characterized by soft tissue density, enhancement with contrast, and bone destruction.

CT

Rhabdomyosarcoma of the right psoas muscle, right psoas muscle is enlarged, and mildly heterogeneous.Source:Case courtesy of Dr Ruslan Asadov, Radiopaedia.org, from Radiopedia
CT images demonstrate a cardiac rhabdomyosarcoma.Source:Case courtesy of Radswiki, from Radiopedia
A 20 years old man presented with repeated epistaxis. In the posterior aspect of the right nasal passage a soft tissue mass is present, just posterior to the inferior turbinate.Source: Case courtesy of A.Prof Frank Gaillard, from Radiopedia


References

  1. Kaseb H, Babiker HM. Cancer, Rhabdomyosarcoma. [Updated 2018 Oct 27]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2018 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK507721/
  2. Kransdorf MJ, Jelinek JS, Moser RP (1993). "Imaging of soft tissue tumors". Radiol Clin North Am. 31 (2): 359–72. PMID 8446754.
  3. "Imaging of Soft Tissue Tumors - Google Books".

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