Difference between revisions of "Ditzels"

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===Microscopic===
===Microscopic===
Features - temporal bone:<ref name=pmid620199>{{Cite journal  | title = Otosclerosis. | journal = Br Med J | volume = 1 | issue = 6105 | pages = 63-4 | month = Jan | year = 1978 | doi =  | PMID = 620199 | PMC = 1602666 | URL = http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1602666/?page=1 }}</ref>
Features (temporal bone):<ref name=pmid620199>{{Cite journal  | title = Otosclerosis. | journal = Br Med J | volume = 1 | issue = 6105 | pages = 63-4 | month = Jan | year = 1978 | doi =  | PMID = 620199 | PMC = 1602666 | URL = http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1602666/?page=1 }}</ref>
*Classically divided into four phases:
*Classically divided into four phases:
*#Osteoclastic phase:  
*#Osteoclastic phase:  
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*#*[[Lamellar bone]] forms around the blood vessels.
*#*[[Lamellar bone]] forms around the blood vessels.


Features - stapes:
Features - (stapes):<ref name=pmid620199>{{Cite journal  | title = Otosclerosis. | journal = Br Med J | volume = 1 | issue = 6105 | pages = 63-4 | month = Jan | year = 1978 | doi =  | PMID = 620199 | PMC = 1602666 | URL = http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1602666/?page=1 }}</ref>
*Unremarkable bone.
*Unremarkable bone.
DDx:
*[[Avascular necrosis]] ~ 25% of cases diagnosed as ''otosclerosis''.<ref name=pmid620199/>
**May be due to [[fat embolism]].


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