Difference between revisions of "Secretory carcinoma of the breast"

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#redirect [[Invasive_breast_cancer#Secretory_carcinoma_of_the_breast]]
'''Secretory carcinoma of the breast''' is an uncommon form of [[invasive breast cancer]] that has an appearance similar to ''[[breast with secretory changes]]''.


It is also known as '''secretory breast carcinoma''', abbreviated '''SBC'''.
==General==
*Favourable prognosis.<ref name=pmid22129193>{{Cite journal  | last1 = Vasudev | first1 = P. | last2 = Onuma | first2 = K. | title = Secretory breast carcinoma: unique, triple-negative carcinoma with a favorable prognosis and characteristic molecular expression. | journal = Arch Pathol Lab Med | volume = 135 | issue = 12 | pages = 1606-10 | month = Dec | year = 2011 | doi = 10.5858/arpa.2010-0351-RS | PMID = 22129193 }}</ref>
*Children and adults.
==Microscopic==
Features:<ref name=pmid19011601>{{Cite journal  | last1 = Laé | first1 = M. | last2 = Fréneaux | first2 = P. | last3 = Sastre-Garau | first3 = X. | last4 = Chouchane | first4 = O. | last5 = Sigal-Zafrani | first5 = B. | last6 = Vincent-Salomon | first6 = A. | title = Secretory breast carcinomas with ETV6-NTRK3 fusion gene belong to the basal-like carcinoma spectrum. | journal = Mod Pathol | volume = 22 | issue = 2 | pages = 291-8 | month = Feb | year = 2009 | doi = 10.1038/modpathol.2008.184 | PMID = 19011601 | URL = http://www.nature.com/modpathol/journal/v22/n2/full/modpathol2008184a.html }}</ref>
*Abundant cytoplasm with fine vacuolation - clear/pale or amphophilic.
*Mitoses - uncommon.
*Nucleoli - rare.
*Architecture: solid, papillary, cribriform or microcystic.
DDx:
*[[Lactational change]]<ref name=pmid9684599>{{Cite journal  | last1 = Vesoulis | first1 = Z. | last2 = Kashkari | first2 = S. | title = Fine needle aspiration of secretory breast carcinoma resembling lactational changes. A case report. | journal = Acta Cytol | volume = 42 | issue = 4 | pages = 1032-6 | month =  | year =  | doi =  | PMID = 9684599 }}</ref> - glandular architecture.
===Images===
*[http://www.webpathology.com/image.asp?n=1&Case=300 Secretory breast carcinoma - low mag. (webpathology.com)].
*[http://www.webpathology.com/image.asp?n=2&Case=300 Secretory breast carcinoma - high mag. (webpathology.com)].
*[http://www.nature.com/modpathol/journal/v22/n2/fig_tab/modpathol2008184f1.html#figure-title Secretory breast carcinoma (nature.com)].
==IHC==
Triple negative (ER -ve, PR -ve, HER2 -ve).<ref name=pmid22129193>{{Cite journal  | last1 = Vasudev | first1 = P. | last2 = Onuma | first2 = K. | title = Secretory breast carcinoma: unique, triple-negative carcinoma with a favorable prognosis and characteristic molecular expression. | journal = Arch Pathol Lab Med | volume = 135 | issue = 12 | pages = 1606-10 | month = Dec | year = 2011 | doi = 10.5858/arpa.2010-0351-RS | PMID = 22129193 }}</ref>
Others:
*Alpha-lactalbumin +ve.
*S-100 protein +ve.
*Polyclonal CEA +ve.
==Molecular pathology==
Characteristic translocation:<ref name=pmid22129193/>
*t(12;15).
**ETV6-NTRK3.
Note:
*This translocation is also seen in [[mammary analogue secretory carcinoma]]<ref name=pmid20410810>{{Cite journal  | last1 = Skálová | first1 = A. | last2 = Vanecek | first2 = T. | last3 = Sima | first3 = R. | last4 = Laco | first4 = J. | last5 = Weinreb | first5 = I. | last6 = Perez-Ordonez | first6 = B. | last7 = Starek | first7 = I. | last8 = Geierova | first8 = M. | last9 = Simpson | first9 = RH. | title = Mammary analogue secretory carcinoma of salivary glands, containing the ETV6-NTRK3 fusion gene: a hitherto undescribed salivary gland tumor entity. | journal = Am J Surg Pathol | volume = 34 | issue = 5 | pages = 599-608 | month = May | year = 2010 | doi = 10.1097/PAS.0b013e3181d9efcc | PMID = 20410810 }}</ref> and [[congenital-infantile fibrosarcoma]].
==See also==
*[[Invasive breast cancer]].
==References==
{{Reflist|2}}
[[Category:Invasive breast cancer]]
[[Category:Diagnosis]]
[[Category:Diagnosis]]

Revision as of 10:53, 14 February 2014

Secretory carcinoma of the breast is an uncommon form of invasive breast cancer that has an appearance similar to breast with secretory changes.

It is also known as secretory breast carcinoma, abbreviated SBC.

General

  • Favourable prognosis.[1]
  • Children and adults.

Microscopic

Features:[2]

  • Abundant cytoplasm with fine vacuolation - clear/pale or amphophilic.
  • Mitoses - uncommon.
  • Nucleoli - rare.
  • Architecture: solid, papillary, cribriform or microcystic.

DDx:

Images

IHC

Triple negative (ER -ve, PR -ve, HER2 -ve).[1]

Others:

  • Alpha-lactalbumin +ve.
  • S-100 protein +ve.
  • Polyclonal CEA +ve.

Molecular pathology

Characteristic translocation:[1]

  • t(12;15).
    • ETV6-NTRK3.

Note:

See also

References

  1. ↑ 1.0 1.1 1.2 Vasudev, P.; Onuma, K. (Dec 2011). "Secretory breast carcinoma: unique, triple-negative carcinoma with a favorable prognosis and characteristic molecular expression.". Arch Pathol Lab Med 135 (12): 1606-10. doi:10.5858/arpa.2010-0351-RS. PMID 22129193.
  2. ↑ Laé, M.; Fréneaux, P.; Sastre-Garau, X.; Chouchane, O.; Sigal-Zafrani, B.; Vincent-Salomon, A. (Feb 2009). "Secretory breast carcinomas with ETV6-NTRK3 fusion gene belong to the basal-like carcinoma spectrum.". Mod Pathol 22 (2): 291-8. doi:10.1038/modpathol.2008.184. PMID 19011601.
  3. ↑ Vesoulis, Z.; Kashkari, S.. "Fine needle aspiration of secretory breast carcinoma resembling lactational changes. A case report.". Acta Cytol 42 (4): 1032-6. PMID 9684599.
  4. ↑ Skálová, A.; Vanecek, T.; Sima, R.; Laco, J.; Weinreb, I.; Perez-Ordonez, B.; Starek, I.; Geierova, M. et al. (May 2010). "Mammary analogue secretory carcinoma of salivary glands, containing the ETV6-NTRK3 fusion gene: a hitherto undescribed salivary gland tumor entity.". Am J Surg Pathol 34 (5): 599-608. doi:10.1097/PAS.0b013e3181d9efcc. PMID 20410810.
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