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Cytopathology of the head and neck is dealt with in a separate article called ''[[head and neck cytopathology]]''. | Cytopathology of the head and neck is dealt with in a separate article called ''[[head and neck cytopathology]]''. | ||
=Anatomy= | |||
[[Image:Blausen_0872_UpperRespiratorySystem.png|thumb|Head and neck anatomy (BruceBlaus/WC).]] | |||
*Oropharynx - includes: tonsil, tonsillar pillar, base of tongue, soft palate.<ref>URL: [https://www.cancer.org/cancer/oral-cavity-and-oropharyngeal-cancer/about/what-is-oral-cavity-cancer.html https://www.cancer.org/cancer/oral-cavity-and-oropharyngeal-cancer/about/what-is-oral-cavity-cancer.html]. Accessed on: 1 April 2021.</ref><ref>URL: [http://www.headandneckcancerguide.org/teens/cancer-basics/explore-cancer-types/throat-cancer/oropharyngeal-cancer/soft-palate-cancer/ http://www.headandneckcancerguide.org/teens/cancer-basics/explore-cancer-types/throat-cancer/oropharyngeal-cancer/soft-palate-cancer/]. Accessed on: 15 November 2016.</ref> | |||
*Oral cavity - includes floor of mouth, bucca, anterior 2/3 of tongue,<ref>URL: [http://www.headandneckcancerguide.org/teens/cancer-basics/explore-cancer-types/oral-cancers/tongue-cancer/ http://www.headandneckcancerguide.org/teens/cancer-basics/explore-cancer-types/oral-cancers/tongue-cancer/]. Accessed on: 15 November 2016.</ref> lips, [[hard palate]], upper & lower alveolar ridge, retromolar trigone.<ref>URL: [http://www.headandneckcancerguide.org/teens/cancer-basics/explore-cancer-types/oral-cancers/oromandibular-cancer/ http://www.headandneckcancerguide.org/teens/cancer-basics/explore-cancer-types/oral-cancers/oromandibular-cancer/]. Accessed on: 15 November 2016.</ref> | |||
*Laryngopharynx. | |||
*Nasopharynx. | |||
=Clinical= | =Clinical= | ||
Common lesions:<ref name=Ref_PBoD780>{{Ref PBoD|780}}</ref> | Common lesions:<ref name=Ref_PBoD780>{{Ref PBoD|780}}</ref> | ||
*Leukoplakia. | *[[Leukoplakia]]. | ||
**Homogeneous. | **Homogeneous. | ||
**Non-homogeneous. | **Non-homogeneous. | ||
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==Erythroplakia== | ==Erythroplakia== | ||
===General=== | ===General=== | ||
*Non-specific clinical finding - may be benign or malignant. | *Non-specific clinical finding - may be benign or [[malignant]]. | ||
*Strong association with non-keratinizing squamous lesions (invasive and dysplastic). | *Strong association with non-keratinizing squamous lesions (invasive and dysplastic). | ||
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Work-up of negative H&E Bx differs by site: | Work-up of negative H&E Bx differs by site: | ||
* | *One large hospital: | ||
** | **LMWK (CAM5.2). | ||
** | **Pankeratin ([[AE1/AE3]]). | ||
* | *Another large hospital: | ||
**Nothing. | **Nothing. | ||
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*[[AKA]] ''juvenile nasopharyngeal angiofibroma''. | *[[AKA]] ''juvenile nasopharyngeal angiofibroma''. | ||
{{Main|Nasopharyngeal angiofibroma}} | {{Main|Nasopharyngeal angiofibroma}} | ||
==Biphenotypic sinonasal sarcoma== | |||
*[[AKA]] ''low grade sinonasal sarcoma with neural and myogenic features''. | |||
{{Main|Biphenotypic sinonasal sarcoma}} | |||
=Nasal polyps= | =Nasal polyps= |
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