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# | '''C-cell hyperplasia''' is a pathology of the [[thyroid gland]] and considered the precursor for [[medullary thryoid carcinoma]]. | ||
==General== | |||
*Screening for C-cell hyperplasia/[[medullary thyroid carcinoma]] done with ''serum calcitonin level''.<ref name=pmid19726541>{{cite journal |author=Machens A, Hoffmann F, Sekulla C, Dralle H |title=Importance of gender-specific calcitonin thresholds in screening for occult sporadic medullary thyroid cancer |journal=Endocr. Relat. Cancer |volume=16 |issue=4 |pages=1291–8 |year=2009 |month=December |pmid=19726541 |doi=10.1677/ERC-09-0136 |url=http://erc.endocrinology-journals.org/cgi/content/full/16/4/1291}}</ref> | |||
==Gross== | |||
*Not visible. | |||
==Microscopic== | |||
Features: | |||
*Location:<ref>URL: [http://www.cap.org/apps/docs/committees/cancer/cancer_protocols/2011/Thyroid_11protocol.pdf http://www.cap.org/apps/docs/committees/cancer/cancer_protocols/2011/Thyroid_11protocol.pdf]. Accessed on: 7 April 2012.</ref> | |||
**Mid portion of lobe to upper third of lobe. | |||
***Not at the poles. | |||
***Not in the isthmus. | |||
*Definitions vary.<ref>SR. 17 January 2011.</ref> | |||
One definition - either of the following:<ref name=pmid19726541>{{cite journal |author=Machens A, Hoffmann F, Sekulla C, Dralle H |title=Importance of gender-specific calcitonin thresholds in screening for occult sporadic medullary thyroid cancer |journal=Endocr. Relat. Cancer |volume=16 |issue=4 |pages=1291–8 |year=2009 |month=December |pmid=19726541 |doi=10.1677/ERC-09-0136 |url=http://erc.endocrinology-journals.org/cgi/content/full/16/4/1291}}</ref> | |||
#>50 C-cells per low-power field (x100). | |||
#*This part of the definition suffers from [[LPFitis]]. The paper should have been rejected. | |||
#Confined to the thyroid gland and no larger than 10 mm in greatest dimension. | |||
Another definition: | |||
*Invasion of the basement membrane with stromal reaction. | |||
A third definition: | |||
*"Several clusters" of more than six C cells. | |||
===Images=== | |||
*[http://www.nature.com/modpathol/journal/v16/n8/fig_tab/3880836f2.html CCH - crappy B&W image (nature.com)].<ref>{{Cite journal | last1 = Guyétant | first1 = S. | last2 = Josselin | first2 = N. | last3 = Savagner | first3 = F. | last4 = Rohmer | first4 = V. | last5 = Michalak | first5 = S. | last6 = Saint-André | first6 = JP. | title = C-cell hyperplasia and medullary thyroid carcinoma: clinicopathological and genetic correlations in 66 consecutive patients. | journal = Mod Pathol | volume = 16 | issue = 8 | pages = 756-63 | month = Aug | year = 2003 | doi = 10.1097/01.MP.0000081727.75778.0C | PMID = 12920219 }}</ref> | |||
*[http://www.nature.com/modpathol/journal/v16/n8/fig_tab/3880836f3.htm CCH - crappy B&W image (nature.com)]. | |||
*[http://www.forpath.org/workshops/0201/photos/fullsize/cas7c.jpg CCH (forpath.org)].<ref>URL: [http://www.forpath.org/workshops/0201/html/case_7.asp http://www.forpath.org/workshops/0201/html/case_7.asp]. Accessed on: 21 May 2013.</ref> | |||
*[http://alf3.urz.unibas.ch/pathopic/e/getpic-fra.cfm?id=4849 CCH (unibas.ch)]. | |||
*[http://alf3.urz.unibas.ch/pathopic/e/getpic-fra.cfm?id=10739 Nodular CCH (unibas.ch)]. | |||
==See also== | |||
*[[Thyroid gland]]. | |||
*[[Medullary thyroid carcinoma]]. | |||
==References== | |||
{{Reflist|2}} | |||
[[Category:Diagnosis]] | [[Category:Diagnosis]] | ||
[[Category:Thyroid gland]] |
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