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Difference between revisions of "Odontogenic tumours and cysts"
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The general topic of ''head and neck pathology'' is covered in the ''[[head and neck pathology]]'' and ''[[head and neck cytopathology]]'' articles. | The general topic of ''head and neck pathology'' is covered in the ''[[head and neck pathology]]'' and ''[[head and neck cytopathology]]'' articles. | ||
=Tooth histology 101= | |||
Teeth develop from a combination of: | Teeth develop from a combination of: | ||
#Epithelium (downward growth). | #Epithelium (downward growth). | ||
#Mesenchyme. | #Mesenchyme. | ||
==Identifying stuff== | |||
Pulp: | Pulp: | ||
*Paucicellular. | *Paucicellular. | ||
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*"Fish scale" appearance. | *"Fish scale" appearance. | ||
==Enamel 101== | ===Enamel 101=== | ||
*Arises from ''reduced enamel epithelium''. | *Arises from ''reduced enamel epithelium''. | ||
===Reduced enamel epithelium=== | ====Reduced enamel epithelium==== | ||
====Microscopic==== | =====Microscopic===== | ||
Features: | Features: | ||
*Bilayered epithelium consisting of: | *Bilayered epithelium consisting of: | ||
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*Transforms into squamous epithelium. (???) | *Transforms into squamous epithelium. (???) | ||
=Specific entities= | |||
==Odontoma== | ==Odontoma== | ||
===General=== | ===General=== | ||
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*Most common odontogenic tumour - considered to be a [[hamartoma]].<ref name=pmid20533004/> | *Most common odontogenic tumour - considered to be a [[hamartoma]].<ref name=pmid20533004/> | ||
*Etiology unknown.<ref name=pmid22629054>{{Cite journal | last1 = Yadav | first1 = M. | last2 = Godge | first2 = P. | last3 = Meghana | first3 = SM. | last4 = Kulkarni | first4 = SR. | title = Compound odontoma. | journal = Contemp Clin Dent | volume = 3 | issue = Suppl 1 | pages = S13-5 | month = Apr | year = 2012 | doi = 10.4103/0976-237X.95095 | PMID = 22629054 }}</ref> | *Etiology unknown.<ref name=pmid22629054>{{Cite journal | last1 = Yadav | first1 = M. | last2 = Godge | first2 = P. | last3 = Meghana | first3 = SM. | last4 = Kulkarni | first4 = SR. | title = Compound odontoma. | journal = Contemp Clin Dent | volume = 3 | issue = Suppl 1 | pages = S13-5 | month = Apr | year = 2012 | doi = 10.4103/0976-237X.95095 | PMID = 22629054 }}</ref> | ||
*Typically first two decades of life. | |||
Classification:<ref name=pmid20533004/> | Classification:<ref name=pmid20533004/> | ||
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*Paucicellular lesion with pale staining. | *Paucicellular lesion with pale staining. | ||
=See also= | |||
*[[Bone tumours]]. | *[[Bone tumours]]. | ||
*[[Head and neck pathology]]. | *[[Head and neck pathology]]. | ||
*[[Head and neck cytopathology]]. | *[[Head and neck cytopathology]]. | ||
=References= | |||
{{reflist|2}} | {{reflist|2}} | ||
=External= | |||
*[http://www.oralpath.org/gallery/cyst_diagrams.htm Oral cavity and jaw cysts - schematic representations (oralpath.org)]. | *[http://www.oralpath.org/gallery/cyst_diagrams.htm Oral cavity and jaw cysts - schematic representations (oralpath.org)]. | ||
[[Category:Head and neck pathology]] | [[Category:Head and neck pathology]] | ||