Mesothelioma CT: Difference between revisions
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==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> | 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> | ||
==CT Scan== | ==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. | *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. | *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 tumour calcification. | *Calcification is seen in 20% of cases which usually represents engulfed calcified pleural plaques rather than true tumour calcification. | ||
*Sarcomatoid variants may demonstrate osteosarcoma or chondrosarcomatous components which may also be calcified. | *Sarcomatoid variants may demonstrate osteosarcoma or chondrosarcomatous components which may also be calcified. | ||
*An uncommon variant is the solitary mediastinal malignant mesothelioma which has appearances reminiscent of a solitary fibrous tumour of the pleura. | *An uncommon variant is the solitary mediastinal malignant mesothelioma which has appearances reminiscent of a solitary fibrous tumour 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> | ||
*Mesotheliomas have 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. | *Mesotheliomas have 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. | *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.<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> | ||
*Presence of a pericardial effusion suggests transpericardial extension. | *Presence of a pericardial effusion suggests transpericardial extension. | ||
Revision as of 01:15, 12 February 2016
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Mesothelioma CT On the Web |
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American Roentgen Ray Society Images of Mesothelioma CT |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Parminder Dhingra, M.D. [2]
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.[1]
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.[1]
- 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 tumour calcification.
- Sarcomatoid variants may demonstrate osteosarcoma or chondrosarcomatous components which may also be calcified.
- An uncommon variant is the solitary mediastinal malignant mesothelioma which has appearances reminiscent of a solitary fibrous tumour of the pleura.[1]
- Mesotheliomas have 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.[1]
- Presence of a pericardial effusion suggests transpericardial extension.
References
- ↑ 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