Difference between revisions of "Lung tumor"
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==Presentations== | ==Presentations== | ||
+ | *Bronchial lavage | ||
*Lung needle biopsy | *Lung needle biopsy | ||
*Tumor resection | *Tumor resection | ||
− | *[[Lung autopsy]] | + | *'''[[Lung autopsy]]''' |
+ | |||
+ | ==Gross processing== | ||
+ | |||
+ | In tumor resection and autopsy: | ||
+ | *Measure tumor size | ||
+ | *Determine location: Which lobe, and if it is peripheral, central or hilar. | ||
+ | *Margin length to pleura and hilum. | ||
+ | *Any involvement of major bronchi or blood vessels. | ||
+ | *Any abnormal hilar lymph nodes. | ||
+ | |||
+ | <gallery mode=packed heights=190> | ||
+ | File:Squamous cell carcinoma involving a subsegmental bronchus.jpg|'''Squamous cell carcinoma''' involving a subsegmental bronchus with distal chronic obstructive pneumonia. The tumor is seen as a rounded nodule, approximately 2 cm in diameter, proximal to a more irregular focus of chronic obstructive pneumonia with fibrosis. | ||
+ | [[File:Large cell carcinoma of the lung.jpg|thumb|'''Large cell carcinoma''', with a large multilobulated tumor adjacent to the hilum. A metastatically involved lymph node is present next to the bronchus.]] | ||
+ | </gallery> | ||
==Microscopic evaluation== | ==Microscopic evaluation== | ||
Line 24: | Line 39: | ||
===Gallery of lung cancers=== | ===Gallery of lung cancers=== | ||
<gallery mode=packed heights=190> | <gallery mode=packed heights=190> | ||
− | File: | + | File:Lung adenocarcinoma with lepidic growth - low magnification.jpg|'''Lung adenocarcinoma''', with lepidic pattern shown, wherein tumors cells cover alveolar walls. |
File:Large cell carcinoma of the lung .jpg|'''Large cell carcinoma''' of the lung: neoplastic cells with abundant pale eosinophilic cytoplasm | File:Large cell carcinoma of the lung .jpg|'''Large cell carcinoma''' of the lung: neoplastic cells with abundant pale eosinophilic cytoplasm | ||
+ | File:Histopathology of squamous-cell carcinoma of the lung.jpg|'''[[Squamous-cell carcinoma of the lung]]'''. Typical squamous-cell carcinoma cells are large with abundant eosinophilic cytoplasm and large, often vesicular, nuclei.<ref>{{cite web|url=https://dermnetnz.org/topics/squamous-cell-carcinoma-pathology/|title=Squamous cell carcinoma pathology|website=DermNetz|author=Dr Nicholas Turnbull, A/Prof Patrick Emanual|date=2014-05-03}}</ref> | ||
</gallery> | </gallery> | ||
{{Bottom}} | {{Bottom}} |
Revision as of 17:40, 27 August 2020
Author:
Mikael Häggström [note 1]
Contents
Presentations
- Bronchial lavage
- Lung needle biopsy
- Tumor resection
- Lung autopsy
Gross processing
In tumor resection and autopsy:
- Measure tumor size
- Determine location: Which lobe, and if it is peripheral, central or hilar.
- Margin length to pleura and hilum.
- Any involvement of major bronchi or blood vessels.
- Any abnormal hilar lymph nodes.
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.[1]
Subsequently distribution of benign tumors and lung cancers, respectively, are as follows:[1]
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
Squamous-cell carcinoma of the lung. Typical squamous-cell carcinoma cells are large with abundant eosinophilic cytoplasm and large, often vesicular, nuclei.[2]
Notes
- ↑ 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
- ↑ 1.0 1.1 Alain C. Borczuk (2008). "Benign Tumors and Tumorlike Conditions of the Lung ". Archives of Pathology & Laboratory Medicine 132 (7). Archived from the original. .
- ↑ Dr Nicholas Turnbull, A/Prof Patrick Emanual (2014-05-03). Squamous cell carcinoma pathology. DermNetz.
Image sources