Difference between revisions of "C-cell hyperplasia"

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*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>
*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>
*Associated with [[multiple endocrine neoplasia type 2A]].<ref name=pmid21134882>{{Cite journal  | last1 = Tyer | first1 = NM. | last2 = Braunstein | first2 = GD. | last3 = Frishberg | first3 = D. | title = Unusual case of multiple endocrine neoplasia type 2A syndrome without medullary thyroid carcinoma. | journal = Endocr Pract | volume = 17 | issue = 2 | pages = e4-7 | month =  | year =  | doi = 10.4158/EP10157.CR | PMID = 21134882 }}</ref>
*Associated with [[multiple endocrine neoplasia type 2A]].<ref name=pmid21134882>{{Cite journal  | last1 = Tyer | first1 = NM. | last2 = Braunstein | first2 = GD. | last3 = Frishberg | first3 = D. | title = Unusual case of multiple endocrine neoplasia type 2A syndrome without medullary thyroid carcinoma. | journal = Endocr Pract | volume = 17 | issue = 2 | pages = e4-7 | month =  | year =  | doi = 10.4158/EP10157.CR | PMID = 21134882 }}</ref>
**May be found in specimen of a surgery done to exclude MTC in the context of [[MEN 2A]].<ref name=pmid18976013>{{Cite journal  | last1 = Etit | first1 = D. | last2 = Faquin | first2 = WC. | last3 = Gaz | first3 = R. | last4 = Randolph | first4 = G. | last5 = DeLellis | first5 = RA. | last6 = Pilch | first6 = BZ. | title = Histopathologic and clinical features of medullary microcarcinoma and C-cell hyperplasia in prophylactic thyroidectomies for medullary carcinoma: a study of 42 cases. | journal = Arch Pathol Lab Med | volume = 132 | issue = 11 | pages = 1767-73 | month = Nov | year = 2008 | doi = 10.1043/1543-2165-132.11.1767 | PMID = 18976013 }}</ref>
**May be found in specimen of a surgery done to exclude [[medullary thyroid carcinoma|MTC]] in the context of [[MEN 2A]].<ref name=pmid18976013>{{Cite journal  | last1 = Etit | first1 = D. | last2 = Faquin | first2 = WC. | last3 = Gaz | first3 = R. | last4 = Randolph | first4 = G. | last5 = DeLellis | first5 = RA. | last6 = Pilch | first6 = BZ. | title = Histopathologic and clinical features of medullary microcarcinoma and C-cell hyperplasia in prophylactic thyroidectomies for medullary carcinoma: a study of 42 cases. | journal = Arch Pathol Lab Med | volume = 132 | issue = 11 | pages = 1767-73 | month = Nov | year = 2008 | doi = 10.1043/1543-2165-132.11.1767 | PMID = 18976013 }}</ref>


==Gross==
==Gross==

Revision as of 06:30, 4 March 2015

C-cell hyperplasia
Diagnosis in short
LM DDx medullary thyroid carcinoma
Gross not apparent
Site thyroid gland
Syndromes Multiple endocrine neoplasia type 2A
Prevalence uncommon
Blood work calcitonin level elevated
Prognosis benign in itself
Treatment prophylatic surgery

C-cell hyperplasia is a pathology of the thyroid gland and considered the precursor for medullary thyroid carcinoma.

General

Gross

  • Not visible.

Microscopic

Features:

  • Location:[4]
    • Mid portion of lobe to upper third of lobe.
      • Not at the poles.
      • Not in the isthmus.
  • Definitions vary.[5]

One definition - either of the following:[1]

  1. >50 C-cells per low-power field (x100).
    • This part of the definition suffers from LPFitis. The paper should have been rejected.
  2. 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

See also

References

  1. ↑ 1.0 1.1 Machens A, Hoffmann F, Sekulla C, Dralle H (December 2009). "Importance of gender-specific calcitonin thresholds in screening for occult sporadic medullary thyroid cancer". Endocr. Relat. Cancer 16 (4): 1291–8. doi:10.1677/ERC-09-0136. PMID 19726541. http://erc.endocrinology-journals.org/cgi/content/full/16/4/1291.
  2. ↑ Tyer, NM.; Braunstein, GD.; Frishberg, D.. "Unusual case of multiple endocrine neoplasia type 2A syndrome without medullary thyroid carcinoma.". Endocr Pract 17 (2): e4-7. doi:10.4158/EP10157.CR. PMID 21134882.
  3. ↑ Etit, D.; Faquin, WC.; Gaz, R.; Randolph, G.; DeLellis, RA.; Pilch, BZ. (Nov 2008). "Histopathologic and clinical features of medullary microcarcinoma and C-cell hyperplasia in prophylactic thyroidectomies for medullary carcinoma: a study of 42 cases.". Arch Pathol Lab Med 132 (11): 1767-73. doi:10.1043/1543-2165-132.11.1767. PMID 18976013.
  4. ↑ URL: http://www.cap.org/apps/docs/committees/cancer/cancer_protocols/2011/Thyroid_11protocol.pdf. Accessed on: 7 April 2012.
  5. ↑ SR. 17 January 2011.
  6. ↑ Guyétant, S.; Josselin, N.; Savagner, F.; Rohmer, V.; Michalak, S.; Saint-André, JP. (Aug 2003). "C-cell hyperplasia and medullary thyroid carcinoma: clinicopathological and genetic correlations in 66 consecutive patients.". Mod Pathol 16 (8): 756-63. doi:10.1097/01.MP.0000081727.75778.0C. PMID 12920219.
  7. ↑ URL: http://www.forpath.org/workshops/0201/html/case_7.asp. Accessed on: 21 May 2013.
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