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Difference between revisions of "Lung tumours"
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→Typical carcinoid lung tumour: +tumourlet
(→Typical carcinoid lung tumour: more) |
(→Typical carcinoid lung tumour: +tumourlet) |
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#Invasive adenocarcinoma: | #Invasive adenocarcinoma: | ||
#*Subtypes: micropapillary, mucinous (previously ''mucinous BAC'', colloid, fetal, enteric. | #*Subtypes: micropapillary, mucinous (previously ''mucinous BAC'', colloid, fetal, enteric. | ||
==Pulmonary carcinoid tumourlet== | |||
*[[AKA]] ''carcinoid tumourlet''. | |||
===General=== | |||
*Neuroendocrine cell proliferation.<ref>{{Cite journal | last1 = Bennett | first1 = GL. | last2 = Chew | first2 = FS. | title = Pulmonary carcinoid tumorlets. | journal = AJR Am J Roentgenol | volume = 162 | issue = 3 | pages = 568 | month = Mar | year = 1994 | doi = | PMID = 8109497 | URL = http://www.ajronline.org/content/162/3/568.full.pdf }}</ref> | |||
**Essentially a small [[typical lung carcinoid tumour|typical carcinoid]]. | |||
===Microscopic=== | |||
Features: | |||
*Nests of cells - classic pattern. | |||
**Salt and pepper chromatin - '''key feature'''. | |||
*Size criterion: <= 4 mm.<ref>URL: [http://pathhsw5m54.ucsf.edu/case7/image75.html http://pathhsw5m54.ucsf.edu/case7/image75.html]. Accessed on: 23 January 2012.</ref> | |||
DDx: | |||
*[[Typical carcinoid lung tumour]]. | |||
Images: | |||
*[http://pathhsw5m54.ucsf.edu/case7/image75.html Tumourlets - several images (ucsf.edu)]. | |||
==Typical carcinoid lung tumour== | ==Typical carcinoid lung tumour== | ||
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DDx: | DDx: | ||
*[[Pulmonary carcinoid tumourlet]]. | |||
*[[Atypical carcinoid lung tumour]]. | *[[Atypical carcinoid lung tumour]]. | ||