Lung tumor: Difference between revisions
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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== | ||
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File:Bronchioloalveolar Cell Adenocarcinoma of the Lung (4669552489).jpg|Bronchioloalveolar cell '''adenocarcinoma''' | File:Bronchioloalveolar Cell Adenocarcinoma of the Lung (4669552489).jpg|Bronchioloalveolar cell '''adenocarcinoma''' | ||
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:Squamous Cell Carcinoma, Bronchial Washing, Pap Stain (8696879946).jpg|'''Squamous-cell carcinoma''' in a bronchial lavage, pap stain | |||
</gallery> | </gallery> | ||
{{Bottom}} | {{Bottom}} | ||
Revision as of 19:06, 10 August 2020
Author:
Mikael Häggström [note 1]
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.
-
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.
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
-
Bronchioloalveolar cell adenocarcinoma
-
Large cell carcinoma of the lung: neoplastic cells with abundant pale eosinophilic cytoplasm
-
Squamous-cell carcinoma in a bronchial lavage, pap stain
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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. .
Image sources