Mesothelioma CT: Difference between revisions

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{{Mesothelioma}}
{{Mesothelioma}}
{{CMG}}{{AE}}{{PSD}}
{{CMG}}{{AE}}{{PSD}}, {{SR}}
 
==Overview==
==Overview==
Chest CT scan may be diagnostic of mesothelioma. CT is the most commonly used modality for the assessment of mesothelioma and is able to stage the disease accurately in most patients.<ref name=MRimesothelioma1>Radiographic findings of mesothelioma. Dr Bruno Di Muzio and A.Prof Frank Gaillard et al. Radiopaedia 2016. http://radiopaedia.org/articles/mesothelioma. Accessed on February 8, 2015</ref>
[[Chest]] [[CT scan]] may be [[diagnostic]] of [[mesothelioma]]. [[CT]] is the most commonly used modality for the assessment of [[mesothelioma]] and is able to stage the [[disease]] accurately in majority of the [[patients]].<ref name="MRimesothelioma1">Radiographic findings of mesothelioma. Dr Bruno Di Muzio and A.Prof Frank Gaillard et al. Radiopaedia 2016. http://radiopaedia.org/articles/mesothelioma. Accessed on February 8, 2015</ref>
 
==CT==
*[[Chest]] [[CT scan]] is the most commonly used modality for the assessment of [[mesothelioma]] and is able to stage the [[disease]] accurately in majority of the patients.<ref name="MRimesothelioma1">Radiographic findings of mesothelioma. Dr Bruno Di Muzio and A.Prof Frank Gaillard et al. Radiopaedia 2016. http://radiopaedia.org/articles/mesothelioma. Accessed on February 8, 2015</ref>
*The appearance is that of a [[soft tissue]] attenuation nodular [[mass]] which spreads along [[Pleural|pleural surfaces]] including into [[pleural]] [[fissures]] and often creating a [[pleural]] rind.
*[[Calcification]] is seen in 20% of cases which usually represents engulfed calcified [[pleural]] [[plaques]] rather than true [[tumor]] [[calcification]].
*Sarcomatoid variants may demonstrate [[osteosarcoma]] or [[chondrosarcoma|chondrosarcomatous components]] which may also be [[Calcified lesion|calcified]].
*An rare variant is the [[solitary]] [[mediastinal]] [[malignant]] [[mesothelioma]] which has appearance of a [[solitary fibrous tumor of the pleura]].<ref name="MRimesothelioma1">Radiographic findings of mesothelioma. Dr Bruno Di Muzio and A.Prof Frank Gaillard et al. Radiopaedia 2016. http://radiopaedia.org/articles/mesothelioma. Accessed on February 8, 2015</ref>
*[[Mesothelioma]] may be associated with direct [[invasion]] of adjacent structures ([[chest wall]], [[diaphragm]], and [[mediastinal]] content) but also frequently [[metastasis]] to the [[contralateral]] [[lung]] and [[Lymph nodes|local nodes]].
*[[Chest wall]] [[invasion]] is suggested by direct [[extension]] in [[bone]] or [[muscle]] identified on CT scan.
*Presence of a [[pericardial effusion]] suggests transpericardial [[extension]].<ref name="MRimesothelioma1">Radiographic findings of mesothelioma. Dr Bruno Di Muzio and A.Prof Frank Gaillard et al. Radiopaedia 2016. http://radiopaedia.org/articles/mesothelioma. Accessed on February 8, 2015</ref>
 
==Gallery==
<gallery>
Image:Ct image mesothelioma image 1.jpg|<sub>CT scan of chest demonstrating a circumferential nodular soft tissue encasement of the left lung. There is volume loss with elevation of the hemidiaphragm and shift of the mediastinum. A number of enlarged mediastinal nodes are noted.<ref name=ctimage1>Image courtesy of Dr. A.Prof Frank Gaillard. Radiopaedia (original file [http://radiopaedia.org/cases/mesothelioma-1 here]). Creative Commons BY-SA-NC</ref>
 
</gallery>


==CT Scan==
*Chest CT scan is the most commonly used modality for the assessment of mesothelioma and is able to stage the disease accurately in most patients.<ref name=MRimesothelioma1>Radiographic findings of mesothelioma. Dr Bruno Di Muzio and A.Prof Frank Gaillard et al. Radiopaedia 2016. http://radiopaedia.org/articles/mesothelioma. Accessed on February 8, 2015</ref>
*The appearance is that of a soft tissue attenuation nodular mass which spreads along pleural surfaces including into pleural fissures and often creating a pleural rind.
*Calcification is seen in 20% of cases which usually represents engulfed calcified pleural plaques rather than true tumor [[calcification]].
*Sarcomatoid variants may demonstrate [[osteosarcoma]] or [[chondrosarcoma|chondrosarcomatous components]] which may also be calcified.
*An uncommon variant is the solitary mediastinal malignant mesothelioma which has appearances reminiscent of a [[solitary fibrous tumor of the pleura]].<ref name=MRimesothelioma1>Radiographic findings of mesothelioma. Dr Bruno Di Muzio and A.Prof Frank Gaillard et al. Radiopaedia 2016. http://radiopaedia.org/articles/mesothelioma. Accessed on February 8, 2015</ref>
*Mesothelioma has a predilection for direct invasion of adjacent structures (chest wall, diaphragm, and mediastinal content) but also frequently metastasise to the contralateral lung and local nodes.
*To confidently predict chest wall invasion the extrapleural fat plane should be seen to be infiltrated and/or direct extension in bone or muscle identified.
*Presence of a pericardial effusion suggests transpericardial extension.<ref name=MRimesothelioma1>Radiographic findings of mesothelioma. Dr Bruno Di Muzio and A.Prof Frank Gaillard et al. Radiopaedia 2016. http://radiopaedia.org/articles/mesothelioma. Accessed on February 8, 2015</ref>


==References==
==References==
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Latest revision as of 20:53, 10 March 2018

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Parminder Dhingra, M.D. [2], Sujit Routray, M.D. [3]

Overview

Chest CT scan may be diagnostic of mesothelioma. CT is the most commonly used modality for the assessment of mesothelioma and is able to stage the disease accurately in majority of the patients.[1]

CT

Gallery


References

  1. 1.0 1.1 1.2 1.3 Radiographic findings of mesothelioma. Dr Bruno Di Muzio and A.Prof Frank Gaillard et al. Radiopaedia 2016. http://radiopaedia.org/articles/mesothelioma. Accessed on February 8, 2015
  2. Image courtesy of Dr. A.Prof Frank Gaillard. Radiopaedia (original file here). Creative Commons BY-SA-NC


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