Difference between revisions of "Collagenous spherulosis"
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| LMDDx = [[atypical ductal hyperplasia]], [[cribriform DCIS]], [[adenoid cystic carcinoma of the breast]] | | LMDDx = [[atypical ductal hyperplasia]], [[cribriform DCIS]], [[adenoid cystic carcinoma of the breast]] | ||
| Stains = | | Stains = | ||
| IHC = | | IHC = CD10 +ve, ER +ve, PR +ve, p63 +ve, SMA +ve, CD117 -ve | ||
| EM = | | EM = | ||
| Molecular = | | Molecular = | ||
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www: | www: | ||
*[http://www.hsc.stonybrook.edu/breast-atlas/V-33.htm Collagenous spherulosis (stonybrook.edu)]. | *[http://www.hsc.stonybrook.edu/breast-atlas/V-33.htm Collagenous spherulosis (stonybrook.edu)]. | ||
==IHC== | |||
Features:<ref name=pmid22658481>{{Cite journal | last1 = Cabibi | first1 = D. | last2 = Giannone | first2 = AG. | last3 = Belmonte | first3 = B. | last4 = Aragona | first4 = F. | last5 = Aragona | first5 = F. | title = CD10 and HHF35 actin in the differential diagnosis between Collagenous spherulosis and adenoid-cystic carcinoma of the breast. | journal = Pathol Res Pract | volume = 208 | issue = 7 | pages = 405-9 | month = Jul | year = 2012 | doi = 10.1016/j.prp.2012.05.002 | PMID = 22658481 }}</ref> | |||
*CD10 +ve. ‡ | |||
*Muscle-specific actin +ve. ‡ | |||
*ER +ve. ‡ | |||
*PR +ve. ‡ | |||
*CD117 -ve. ‡ | |||
Others:<ref name=pmid22658481/> | |||
*SMA +ve. | |||
*p63 +ve. | |||
*CK 5/6 +ve. | |||
Note: | |||
* ‡ The opposite pattern is seen in ''adenoid cystic carcinoma''. | |||
==See also== | ==See also== | ||
Revision as of 20:55, 16 February 2014
| Collagenous spherulosis | |
|---|---|
| Diagnosis in short | |
 Collagenous spherulosis. H&E stain. | |
|
| |
| Synonyms | mucinous spherulosis, spherulosis |
|
| |
| LM |
tubular/cribriform architecture with intratubular eosinophilic material (classical arranged like the spokes of a wheel ("radial spikes"), granules ~ 1-2 micrometers), no mitotic activity, epithelial & myoepithelial - like benign breast |
| LM DDx | atypical ductal hyperplasia, cribriform DCIS, adenoid cystic carcinoma of the breast |
| IHC | CD10 +ve, ER +ve, PR +ve, p63 +ve, SMA +ve, CD117 -ve |
| Site | breast |
|
| |
| Symptoms | usu. asymptomatic |
| Prevalence | uncommon |
| Prognosis | benign |
| Treatment | none required, usu. incidental finding |
Collagenous spherulosis is a benign change of the breast that can be confused for a malignancy.
It is also known as mucinous spherulosis, and spherulosis.[1]
General
- Benign.
- Usually an incidental (microscopic) finding.[2]
- Can mimic ADH, cribriform DCIS, adenoid cystic carcinoma.[3]
Gross
- Usually small, typically 1-3 mm.[3]
Note:
Microscopic
- Tubular/cribriform architecture.
- Intratubular eosinophilic material - key feature.
- Classical: Arranged like the spokes of a wheel ("radial spikes").
- Atypical: Granules ~ 1-2 micrometers.
- No mitotic activity.
- Two cells populations (epithelial & myoepithelial) - like a well-behaved breast gland.
Notes:
- Usually small lesions: < 50 spherules per lesion, <100 micrometers.
- May be multifocal.
- +/-Calcifications - may prompt biopsy.
DDx:
Images
Collagenous spherulosis - intermed. mag. (WC/Nephron)
Collagenous spherulosis - high mag. (WC/Nephron)
Collagenous spherulosis - very high mag. (WC/Nephron)
www:
IHC
Features:[7]
- CD10 +ve. ‡
- Muscle-specific actin +ve. ‡
- ER +ve. ‡
- PR +ve. ‡
- CD117 -ve. ‡
Others:[7]
- SMA +ve.
- p63 +ve.
- CK 5/6 +ve.
Note:
- ‡ The opposite pattern is seen in adenoid cystic carcinoma.
See also
References
- ↑ 1.0 1.1 URL: http://surgpathcriteria.stanford.edu/breast/collspher/. Accessed on: 4 September 2011.
- ↑ Jan, YJ.; Li, MC.; Ho, WL. (Oct 2002). "Collagenous spherulosis presenting as a mass of the breast.". Zhonghua Yi Xue Za Zhi (Taipei) 65 (10): 494-7. PMID 12523815.
- ↑ 3.0 3.1 3.2 Resetkova, E.; Albarracin, C.; Sneige, N. (Jan 2006). "Collagenous spherulosis of breast: morphologic study of 59 cases and review of the literature.". Am J Surg Pathol 30 (1): 20-7. PMID 16330938.
- ↑ Hill, P.; Cawson, J.. "Collagenous spherulosis presenting as a mass lesion on imaging.". Breast J 14 (3): 301-3. doi:10.1111/j.1524-4741.2008.00580.x. PMID 18476887.
- ↑ Jan, YJ.; Li, MC.; Ho, WL. (Oct 2002). "Collagenous spherulosis presenting as a mass of the breast.". Zhonghua Yi Xue Za Zhi (Taipei) 65 (10): 494-7. PMID 12523815.
- ↑ URL: http://www.hsc.stonybrook.edu/breast-atlas/V-33.htm. Accessed on: 31 August 2011.
- ↑ 7.0 7.1 Cabibi, D.; Giannone, AG.; Belmonte, B.; Aragona, F.; Aragona, F. (Jul 2012). "CD10 and HHF35 actin in the differential diagnosis between Collagenous spherulosis and adenoid-cystic carcinoma of the breast.". Pathol Res Pract 208 (7): 405-9. doi:10.1016/j.prp.2012.05.002. PMID 22658481.