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An introduction to head and neck pathology (view source)
Revision as of 05:50, 14 November 2010
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Image: [http://en.wikipedia.org/wiki/File:Angiofibroma.jpg Angiofibroma (WP)]. | Image: [http://en.wikipedia.org/wiki/File:Angiofibroma.jpg Angiofibroma (WP)]. | ||
=Polyps= | =Nasal Polyps= | ||
== | ==Overview== | ||
DDx (benign - multiple):<ref name=emedicine994274>[http://emedicine.medscape.com/article/994274-overview http://emedicine.medscape.com/article/994274-overview]</ref> | DDx (benign - multiple):<ref name=emedicine994274>[http://emedicine.medscape.com/article/994274-overview http://emedicine.medscape.com/article/994274-overview]</ref> | ||
*Autoimmune/idiopathic: | *Autoimmune/idiopathic: | ||
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Features:<ref>http://www.nature.com/modpathol/journal/v13/n10/full/3880208a.html</ref> | Features:<ref>http://www.nature.com/modpathol/journal/v13/n10/full/3880208a.html</ref> | ||
*Polyp with lymph channels. | *Polyp with lymph channels. | ||
==Schneiderian papilloma== | |||
===General=== | |||
*Lumpers vs. splitters debate about whether it is one entity or three.<ref name=pmid11904343>{{cite journal |author=Barnes L |title=Schneiderian papillomas and nonsalivary glandular neoplasms of the head and neck |journal=Mod. Pathol. |volume=15 |issue=3 |pages=279–97 |year=2002 |month=March |pmid=11904343 |doi=10.1038/modpathol.3880524 |url=http://www.nature.com/modpathol/journal/v15/n3/full/3880524a.html}}</ref> | |||
[http://www.nature.com/modpathol/journal/v15/n3/fig_tab/3880524t1.html#figure-title Subclassification]:<ref name=pmid11904343/> | |||
*Inverted - most common ~60-65%. | |||
*Fungiform - less common ~ 30-35%. | |||
*Oncocytic - least common ~5%. | |||
===Microscopic==== | |||
====Inverted papilloma==== | |||
Features:<ref name=pmid11904343/> | |||
*Well-demarcated epithelial islands in the stroma. | |||
*+/-Neutrophils. | |||
*+/-Surface keratinization. | |||
Notes: | |||
*May mimic invasive SCC. | |||
Images: | |||
*[http://path.upmc.edu/cases/case32.html Inverted papilloma & verrucous carcinoma (upmc.edu)]. | |||
=See also= | =See also= | ||