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Difference between revisions of "Pulmonary carcinoid tumourlet"
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Pulmonary carcinoid tumourlet (view source)
Revision as of 19:13, 25 September 2015
, 19:13, 25 September 2015→Microscopic
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==Microscopic== | ==Microscopic== | ||
Features: | Features: | ||
* | *Neuroendocrine cells - usually in nests (classic pattern). | ||
**Salt and pepper chromatin - '''key feature'''. | **Salt and pepper chromatin - '''key feature'''. | ||
*Size criterion: <5 mm.<ref name=pct_ucsf>URL: [http://pathhsw5m54.ucsf.edu/case7/image75.html http://pathhsw5m54.ucsf.edu/case7/image75.html]. Accessed on: 23 January 2012.</ref><ref name=pmid23205296>{{Cite journal | last1 = He | first1 = P. | last2 = Gu | first2 = X. | last3 = Wu | first3 = Q. | last4 = Lin | first4 = Y. | last5 = Gu | first5 = Y. | last6 = He | first6 = J. | title = Pulmonary carcinoid tumorlet without underlying lung disease: analysis of its relationship to fibrosis. | journal = J Thorac Dis | volume = 4 | issue = 6 | pages = 655-8 | month = Dec | year = 2012 | doi = 10.3978/j.issn.2072-1439.2012.06.11 | PMID = 23205296 }}</ref> | *Size criterion: <5 mm.<ref name=pct_ucsf>URL: [http://pathhsw5m54.ucsf.edu/case7/image75.html http://pathhsw5m54.ucsf.edu/case7/image75.html]. Accessed on: 23 January 2012.</ref><ref name=pmid23205296>{{Cite journal | last1 = He | first1 = P. | last2 = Gu | first2 = X. | last3 = Wu | first3 = Q. | last4 = Lin | first4 = Y. | last5 = Gu | first5 = Y. | last6 = He | first6 = J. | title = Pulmonary carcinoid tumorlet without underlying lung disease: analysis of its relationship to fibrosis. | journal = J Thorac Dis | volume = 4 | issue = 6 | pages = 655-8 | month = Dec | year = 2012 | doi = 10.3978/j.issn.2072-1439.2012.06.11 | PMID = 23205296 }}</ref> | ||
*Must be through the bronchial basement membrane.<ref name=pmid20729444>{{Cite journal | last1 = Koo | first1 = CW. | last2 = Baliff | first2 = JP. | last3 = Torigian | first3 = DA. | last4 = Litzky | first4 = LA. | last5 = Gefter | first5 = WB. | last6 = Akers | first6 = SR. | title = Spectrum of pulmonary neuroendocrine cell proliferation: diffuse idiopathic pulmonary neuroendocrine cell hyperplasia, tumorlet, and carcinoids. | journal = AJR Am J Roentgenol | volume = 195 | issue = 3 | pages = 661-8 | month = Sep | year = 2010 | doi = 10.2214/AJR.09.3811 | PMID = 20729444 }}</ref> | |||
DDx: | DDx: | ||