Nasal cavity and paranasal sinuses: Difference between revisions

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{{Comprehensiveness}}
==Nasal or sinonasal polyps==
==Nasal or sinonasal polyps==
Look for signs of malignancy.
Look for signs of malignancy.
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File:Histopathology of nasal squamous papilloma.jpg|'''Squamous papilloma''', with acanthosis and hyperkerratosis.
File:Histopathology of nasal squamous papilloma.jpg|'''Squamous papilloma''', with acanthosis and hyperkerratosis.
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In case of significant '''inflammation''', take at least one high magnification look to confirm that it is mixed and that lymphocytes are not atypical (otherwise, consult hematopathology, particularly whether it could be a lymphoma, notably extranodal NK/T cell lymphoma, nasal type.
In case of significant '''inflammation''':
*Take at least one high magnification look to confirm that it is mixed and that lymphocytes are not atypical (otherwise, consult hematopathology, particularly whether it could be a lymphoma, notably extranodal NK/T cell lymphoma, nasal type.
*{{Moderate-begin}}Classify as '''acute''' (with neutrophils) versus '''chronic''' (lymphocytes, eosinophils and/or plasma cells). Also look at any bone fragments for osteomyelitis.{{Moderate-end}} {{further|Osteomyelitis}}
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<gallery mode=packed heights=210>
File:Histopathology of sinonasal inflammatory polyp with mixed inflammation, annotated.jpg|'''Benign mixed inflammation''' of an inflammatory sinonasal polyp.
File:Histopathology of sinonasal inflammatory polyp with mixed inflammation, annotated.jpg|'''Benign chronic mixed inflammation''' of an inflammatory sinonasal polyp.
File:Histopathology of acute sinusitis.png|'''Acute inflammation''' characterized by neutrophils.
File:Histopathology of extranodal NK-T cell lymphoma, nasal type.png|'''Extranodal NK/T cell lymphoma, nasal type'''.<ref>{{cite journal| author=Takahara M, Kumai T, Kishibe K, Nagato T, Harabuchi Y| title=Extranodal NK/T-Cell Lymphoma, Nasal Type: Genetic, Biologic, and Clinical Aspects with a Central Focus on Epstein-Barr Virus Relation. | journal=Microorganisms | year= 2021 | volume= 9 | issue= 7 | pages=  | pmid=34202088 | doi=10.3390/microorganisms9071381 | pmc=8304202 | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=34202088  }}<br>- "This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/)."</ref> These lymphoma cells are typically monotonous, with folded nuclei, indistinct nucleoli and moderate amount of cytoplasm.<ref>{{cite web|url=https://www.pathologyoutlines.com/topic/lymphomanonBnasal.html|title=Extranodal NK / T cell lymphoma, nasal type|author=Mario L. Marques-Piubelli, M.D., Carlos A. Torres-Cabala, M.D., Roberto N. Miranda, M.D.|website=Pathology Outlines}} Last author update: 5 January 2021. Last staff update: 14 October 2021</ref>
File:Histopathology of extranodal NK-T cell lymphoma, nasal type.png|'''Extranodal NK/T cell lymphoma, nasal type'''.<ref>{{cite journal| author=Takahara M, Kumai T, Kishibe K, Nagato T, Harabuchi Y| title=Extranodal NK/T-Cell Lymphoma, Nasal Type: Genetic, Biologic, and Clinical Aspects with a Central Focus on Epstein-Barr Virus Relation. | journal=Microorganisms | year= 2021 | volume= 9 | issue= 7 | pages=  | pmid=34202088 | doi=10.3390/microorganisms9071381 | pmc=8304202 | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=34202088  }}<br>- "This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/)."</ref> These lymphoma cells are typically monotonous, with folded nuclei, indistinct nucleoli and moderate amount of cytoplasm.<ref>{{cite web|url=https://www.pathologyoutlines.com/topic/lymphomanonBnasal.html|title=Extranodal NK / T cell lymphoma, nasal type|author=Mario L. Marques-Piubelli, M.D., Carlos A. Torres-Cabala, M.D., Roberto N. Miranda, M.D.|website=Pathology Outlines}} Last author update: 5 January 2021. Last staff update: 14 October 2021</ref>
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==Reporting==
==Reporting==
Example:
Example:
{|class=wikitable
{|class=wikitable
| [[File:Histopathology of nasal contents with chronic inflammation.jpg|200px|left|]] Right and left sinus contents, excisions:<br>Benign respiratory mucosa with chronic inflammation.<br>Bone without significant histopathologic changes.|}
| [[File:Histopathology of nasal contents with chronic inflammation.jpg|210px|left]] Right and left sinus contents, excisions:<br>Benign respiratory mucosa with chronic inflammation.<br>Bone without significant histopathologic changes.
|}
{{Bottom}}
{{Bottom}}
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