Difference between revisions of "Lung tumor"

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{{Comprehensiveness}}
 
==Presentations==
 
==Presentations==
 
*Bronchial lavage
 
*Bronchial lavage
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==Gross processing==
 
==Gross processing==
 
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In tumor resection:<ref>{{cite web|url=https://www.uclahealth.org/pathology/workfiles/Education/Residency%20Program/Gross%20Manual/Wedge%20Resection.pdf|title=Pulmonary pathology grossing guidelines|accessdate=2021-03-17}}</ref>
In tumor resection and autopsy:
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*'''Measure''' the specimen in 3 dimensions.
*Measure tumor size
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*Describe any included '''pleural surface''', including color, and any presence of granularity, adhesions, retraction, or tumor.
*Determine location: Which lobe, and if it is peripheral, central or hilar.
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*Serially '''section''' the specimen. Describe the cut surface, including color and consistency, and any focal lesions.
*Margin length to pleura and hilum.
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*Measure '''tumor size''' as a maximum diameter {{Moderate-begin}}or 3 dimensions{{Moderate-end}}
*Any involvement of major bronchi or blood vessels.
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*Determine '''location''': Which lobe if applicable, and if it is peripheral, central or hilar.
*Any abnormal hilar lymph nodes.
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*'''Margin''' length to pleura and hilum/surgical margin.
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*Any '''involvement''' of major bronchi or blood vessels.
 +
*Any abnormal '''lymph nodes''', including hilar ones if available.
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Photograph all tumors.
  
 
<gallery mode=packed heights=190>
 
<gallery mode=packed heights=190>

Revision as of 09:57, 17 March 2021

Author: Mikael Häggström [note 1]

Comprehensiveness

On this resource, the following formatting is used for comprehensiveness:

  • Minimal depth
  • (Moderate depth)
  • ((Comprehensive))

Presentations

Gross processing

In tumor resection:[1]

  • Measure the specimen in 3 dimensions.
  • Describe any included pleural surface, including color, and any presence of granularity, adhesions, retraction, or tumor.
  • Serially section the specimen. Describe the cut surface, including color and consistency, and any focal lesions.
  • Measure tumor size as a maximum diameter (or 3 dimensions)
  • Determine location: Which lobe if applicable, and if it is peripheral, central or hilar.
  • Margin length to pleura and hilum/surgical margin.
  • Any involvement of major bronchi or blood vessels.
  • Any abnormal lymph nodes, including hilar ones if available.

Photograph all tumors.

Microscopic evaluation

Medical imaging provides a major clue as to whether a lung tumor is benign or malignant, where lesions smaller than 2 cm are likely to be benign, whereas lesions larger than 2 cm are malignant (that is, lung cancer) in 85% of cases.[2]

Subsequently distribution of benign tumors and lung cancers, respectively, are as follows:[2]

Lung cancers by relative incidence.

Benign lung tumors:

  • Hamartomas - 76%
  • Benign fibrous mesothelioma/solitary fibrous tumor (SFT) - 12.3%
  • Inflammatory pseudotumor (IPT) - 5.4%
  • Lipoma - 1.5%
  • Leiomyoma - 1.5%
  • Other - 3.3%

Gallery of lung cancers

Notes

  1. For a full list of contributors, see article history. Creators of images are attributed at the image description pages, seen by clicking on the images. See Patholines:Authorship for details.

Main page

References

  1. . Pulmonary pathology grossing guidelines. Retrieved on 2021-03-17.
  2. 2.0 2.1 Alain C. Borczuk (2008). "Benign Tumors and Tumorlike Conditions of the Lung ". Archives of Pathology & Laboratory Medicine 132 (7). Archived from the original. . 
  3. Dr Nicholas Turnbull, A/Prof Patrick Emanual (2014-05-03). Squamous cell carcinoma pathology. DermNetz.

Image sources