Difference between revisions of "Biphenotypic sinonasal sarcoma"
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==General== | ==General== | ||
*Rare. | *Rare. | ||
*Female predominant. | *Female predominant - (female:male = 3:1).<ref name=pmid22301502>{{Cite journal | last1 = Lewis | first1 = JT. | last2 = Oliveira | first2 = AM. | last3 = Nascimento | first3 = AG. | last4 = Schembri-Wismayer | first4 = D. | last5 = Moore | first5 = EA. | last6 = Olsen | first6 = KD. | last7 = Garcia | first7 = JG. | last8 = Lonzo | first8 = ML. | last9 = Lewis | first9 = JE. | title = Low-grade sinonasal sarcoma with neural and myogenic features: a clinicopathologic analysis of 28 cases. | journal = Am J Surg Pathol | volume = 36 | issue = 4 | pages = 517-25 | month = Apr | year = 2012 | doi = 10.1097/PAS.0b013e3182426886 | PMID = 22301502 }}</ref> | ||
==Microscopic== | ==Microscopic== | ||
Revision as of 16:15, 13 March 2016
Biphenotypic sinonasal sarcoma, abbreviated SNS,[1] is a rare bland appearing malignant tumour of the head and neck.
It is also known as low grade sinonasal sarcoma with neural and myogenic features.[2]
General
- Rare.
- Female predominant - (female:male = 3:1).[3]
Microscopic
Features;
- Bland hypercellular stroma typically without many mitoses.
- Invaginating glandular epithelium.
DDx:
IHC
- Actin +ve.
- S-100 +ve (strong).
Molecular
- PAX3-MAML3 fusion - t(2;4)(q35;q31.1).[1]
See also
References
- ↑ 1.0 1.1 Wang, X.; Bledsoe, KL.; Graham, RP.; Asmann, YW.; Viswanatha, DS.; Lewis, JE.; Lewis, JT.; Chou, MM. et al. (Jul 2014). "Recurrent PAX3-MAML3 fusion in biphenotypic sinonasal sarcoma.". Nat Genet 46 (7): 666-8. doi:10.1038/ng.2989. PMID 24859338.
- ↑ Powers, KA.; Han, LM.; Chiu, AG.; Aly, FZ. (May 2015). "Low-grade sinonasal sarcoma with neural and myogenic features--diagnostic challenge and pathogenic insight.". Oral Surg Oral Med Oral Pathol Oral Radiol 119 (5): e265-9. doi:10.1016/j.oooo.2014.10.007. PMID 25488011.
- ↑ Lewis, JT.; Oliveira, AM.; Nascimento, AG.; Schembri-Wismayer, D.; Moore, EA.; Olsen, KD.; Garcia, JG.; Lonzo, ML. et al. (Apr 2012). "Low-grade sinonasal sarcoma with neural and myogenic features: a clinicopathologic analysis of 28 cases.". Am J Surg Pathol 36 (4): 517-25. doi:10.1097/PAS.0b013e3182426886. PMID 22301502.