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Difference between revisions of "An introduction to head and neck pathology"
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An introduction to head and neck pathology (view source)
Revision as of 13:39, 27 May 2010
, 13:39, 27 May 2010more
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==Pyogenic granuloma== | ==Pyogenic granuloma== | ||
===General=== | |||
*Sometimes ''pregnancy tumour''. | *Sometimes ''pregnancy tumour''. | ||
*Seen in children, young adults, pregnant women. | *Seen in children, young adults, pregnant women. | ||
===Gross=== | |||
Features:<ref>PBoD P.776.</ref> | |||
*Erythematous. | |||
*Hemorrhagic. | |||
===Microscopic=== | |||
Features:<ref>PBoD P.775.</ref> | |||
*Vascular. | *Vascular. | ||
*Peduncular lesion. | *Peduncular lesion. | ||
DDx: | DDx: | ||
*Capillary hemangioma. | *Capillary hemangioma. | ||
==Hairy leukoplakia== | ==Hairy leukoplakia== | ||
| Line 41: | Line 43: | ||
*Acanthosis (thicker stratum spinosum).<ref>[http://www.emedicine.com/asp/dictionary.asp?keyword=acanthosis]</ref> | *Acanthosis (thicker stratum spinosum).<ref>[http://www.emedicine.com/asp/dictionary.asp?keyword=acanthosis]</ref> | ||
*"Balloon cells" in upper stratum spinosum - perinuclear clearing. | *"Balloon cells" in upper stratum spinosum - perinuclear clearing. | ||
==Plummer-Vinson syndrome== | ==Plummer-Vinson syndrome== | ||
Triad:<ref>PBoD P.776</ref> | Triad:<ref>PBoD P.776.</ref> | ||
*Iron-deficiency anemia. | *Iron-deficiency anemia. | ||
*Glossitis. | *Glossitis. | ||
*Esophageal dysphagia (usually related to webs). | *Esophageal dysphagia (usually related to webs). | ||
==Oral candidiasis== | ==Oral candidiasis== | ||
*Fungus. | *Fungus. | ||
*May be | *May be associated with immunodeficiency, e.g. AIDS, organ transplant/immunosuppression. | ||
Forms:<ref>PBoD P.777.</ref> | Forms:<ref>PBoD P.777.</ref> | ||
| Line 62: | Line 62: | ||
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. | ||
==Pharyngeal carcinoma/nasopharyngeal carcinoma== | ==Pharyngeal carcinoma/nasopharyngeal carcinoma== | ||
| Line 189: | Line 188: | ||
Image: | Image: | ||
*[http://commons.wikimedia.org/wiki/File:Granular_cell_tumor_%283%29_skin.jpg Granular cell tumour (WC)]. | *[http://commons.wikimedia.org/wiki/File:Granular_cell_tumor_%283%29_skin.jpg Granular cell tumour (WC)]. | ||
==Olfactory neuroblastoma== | |||
*AKA ''esthesioneuroblastoma''. | |||
===Microscopic=== | |||
Features: | |||
*Small round (blue) cell tumour. | |||
==Rathke's cleft cysts== | |||
===Microscopic=== | |||
Features: | |||
*Lined by cuboidal or columnar epithelial +occasional goblet cells.<ref>URL: [http://www.endotext.org/neuroendo/neuroendo3/neuroendo3.html http://www.endotext.org/neuroendo/neuroendo3/neuroendo3.html]. Accessed on: 27 May 2010.</ref> | |||
*+/-Squamous metaplasia. | |||
Image: [http://www.endotext.org/neuroendo/neuroendo3/figures/figure11.jpg Rathke's cleft cyst (endotext.org)]. | |||
==Craniopharyngioma== | |||
*Develop from remains of Rathke's pouch. | |||
===Microscopic=== | |||
Features:<ref>DCHH P.184.</ref> | |||
*Well-circumscribed or pseudoinvasive border. | |||
*Squamoid appearance - papillary arch. | |||
Image: [http://www.lmp.ualberta.ca/resources/pathoimages/Images-C/000p039r.jpg Craniopharyngioma (lmp.ualbera.ca)]. | |||
==Ameloblastoma== | ==Ameloblastoma== | ||
| Line 247: | Line 271: | ||
==External links== | ==External links== | ||
*[http://education.vetmed.vt.edu/curriculum/vm8054/labs/Lab17/Lab17.htm Oral cavity histology (vetmed.vt.edu)]. | *[http://education.vetmed.vt.edu/curriculum/vm8054/labs/Lab17/Lab17.htm Oral cavity histology (vetmed.vt.edu)]. | ||
*[http://www.endotext.org/neuroendo/neuroendo3/neuroendo3.html Endocrine pathology - pituitary (endotext.org)]. | |||
[[Category:Head and neck pathology]] | [[Category:Head and neck pathology]] | ||