Lung cancer CT: Difference between revisions

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==CT Scan==
==CT Scan==
CT scans help stage the lung cancer. A CT scan of the abdomen and brain can help visualize the common sights of metastases: adrenal glands, liver, and brain.
*Chest CT scan may be helpful in the diagnosis of lung cancer. Findings on CT scan suggestive of lung cancer include:<ref name="PurandareRangarajan2015">{{cite journal|last1=Purandare|first1=NilenduC|last2=Rangarajan|first2=Venkatesh|title=Imaging of lung cancer: Implications on staging and management|journal=Indian Journal of Radiology and Imaging|volume=25|issue=2|year=2015|pages=109|issn=0971-3026|doi=10.4103/0971-3026.155831}}</ref>
**Solitary pulmonary nodule
**Centrally located masses
**Mediastinal invasion
**Peripherally situated lesions invading the chest wall
**A ground-glass opacity
**Consolidation
**Mixed density or pure ground-glass nodules
**Mixed density or pure ground-glass consolidation


The benefits of CT Scans in lung cancer patients are the following<ref name="Silvestri">Gerard A. Silvestri, Lynn T. Tanoue, Mitchell L. Margolis, John Barker, Frank Detterbeck.11/30/11.The Noninvasive Staging of Non Small-cell Lung Cancer. Chestpubs. http://chestjournal.chestpubs.org/content/123/1_suppl/147S.full/</ref>
*CT scans help stage the lung cancer. A CT scan of the abdomen and brain can help visualize the common sights of metastases: adrenal glands, liver, and brain.
*Provides anatomical detail to locate the [[tumor]]
*The benefits of CT Scans in lung cancer patients are the following<ref name="Silvestri">Gerard A. Silvestri, Lynn T. Tanoue, Mitchell L. Margolis, John Barker, Frank Detterbeck.11/30/11.The Noninvasive Staging of Non Small-cell Lung Cancer. Chestpubs. http://chestjournal.chestpubs.org/content/123/1_suppl/147S.full/</ref>
*Demonstrates proximity to nearby structures
**Provides anatomical detail to locate the [[tumor]]
*Deciphers whether [[lymph nodes]] are enlarged in the [[mediastinum]]
**Demonstrates proximity to nearby structures
**Deciphers whether [[lymph nodes]] are enlarged in the [[mediastinum]]


Unfortunately, research has shown that there are a number of false positives associated with CT scanning because a CT scan on its own cannot determine [[malignancy]]. A positive result for a tumor using a CT scan is typically followed up with a [[biopsy]] for confirmation.
Unfortunately, research has shown that there are a number of false positives associated with CT scanning because a CT scan on its own cannot determine [[malignancy]]. A positive result for a tumor using a CT scan is typically followed up with a [[biopsy]] for confirmation.

Revision as of 15:46, 15 February 2018

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Saarah T. Alkhairy, M.D.; Kim-Son H. Nguyen, M.D., M.P.A., Cafer Zorkun, M.D., Ph.D. [2]

Overview

CT scans help stage the lung cancer. A CT scan of the abdomen and brain can help visualize the common sights of metastases: adrenal glands, liver, and brain. CT scans diagnose lung cancer by providing anatomical detail to locate the tumor, demonstrating proximity to nearby structures, and deciphering whether lymph nodes are enlarged in the mediastinum.

CT Scan

  • Chest CT scan may be helpful in the diagnosis of lung cancer. Findings on CT scan suggestive of lung cancer include:[1]
    • Solitary pulmonary nodule
    • Centrally located masses
    • Mediastinal invasion
    • Peripherally situated lesions invading the chest wall
    • A ground-glass opacity
    • Consolidation
    • Mixed density or pure ground-glass nodules
    • Mixed density or pure ground-glass consolidation
  • CT scans help stage the lung cancer. A CT scan of the abdomen and brain can help visualize the common sights of metastases: adrenal glands, liver, and brain.
  • The benefits of CT Scans in lung cancer patients are the following[2]
    • Provides anatomical detail to locate the tumor
    • Demonstrates proximity to nearby structures
    • Deciphers whether lymph nodes are enlarged in the mediastinum

Unfortunately, research has shown that there are a number of false positives associated with CT scanning because a CT scan on its own cannot determine malignancy. A positive result for a tumor using a CT scan is typically followed up with a biopsy for confirmation. Images courtesy of RadsWiki

CT scan showing a cancerous tumor in the left lung
CT: Bronchoalveolar carcinoma


CT: Another patient with bronchoalveolar carcinoma
CT: Another patient with bronchoalveolar carcinoma


References

  1. Purandare, NilenduC; Rangarajan, Venkatesh (2015). "Imaging of lung cancer: Implications on staging and management". Indian Journal of Radiology and Imaging. 25 (2): 109. doi:10.4103/0971-3026.155831. ISSN 0971-3026.
  2. Gerard A. Silvestri, Lynn T. Tanoue, Mitchell L. Margolis, John Barker, Frank Detterbeck.11/30/11.The Noninvasive Staging of Non Small-cell Lung Cancer. Chestpubs. http://chestjournal.chestpubs.org/content/123/1_suppl/147S.full/

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