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Difference between revisions of "Choroid plexus papilloma"
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| Micro = papillary epithelial structures with bland cytology, mitoses uncommon | | Micro = papillary epithelial structures with bland cytology, mitoses uncommon | ||
| Subtypes = | | Subtypes = | ||
| LMDDx = metastatic papillary [[adenocarcinoma]], [[ELST]] | | LMDDx = [[choroid plexus carcinoma]], metastatic papillary [[adenocarcinoma]], [[ELST]] | ||
| Stains = | | Stains = | ||
| IHC = Kir 7.1 +ve, EAAT1 +ve, GFAP +ve/-ve, S-100 +ve/-ve, CK +ve/-ve | | IHC = Kir 7.1 +ve, EAAT1 +ve, GFAP +ve/-ve, S-100 +ve/-ve, CK +ve/-ve | ||
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* Atypical CPP: 2 or more mitoses /10 HPF.<ref name=pmid19543851>{{Cite journal | last1 = Wrede | first1 = B. | last2 = Hasselblatt | first2 = M. | last3 = Peters | first3 = O. | last4 = Thall | first4 = PF. | last5 = Kutluk | first5 = T. | last6 = Moghrabi | first6 = A. | last7 = Mahajan | first7 = A. | last8 = Rutkowski | first8 = S. | last9 = Diez | first9 = B. | title = Atypical choroid plexus papilloma: clinical experience in the CPT-SIOP-2000 study. | journal = J Neurooncol | volume = 95 | issue = 3 | pages = 383-92 | month = Dec | year = 2009 | doi = 10.1007/s11060-009-9936-y | PMID = 19543851 }}</ref> | * Atypical CPP: 2 or more mitoses /10 HPF.<ref name=pmid19543851>{{Cite journal | last1 = Wrede | first1 = B. | last2 = Hasselblatt | first2 = M. | last3 = Peters | first3 = O. | last4 = Thall | first4 = PF. | last5 = Kutluk | first5 = T. | last6 = Moghrabi | first6 = A. | last7 = Mahajan | first7 = A. | last8 = Rutkowski | first8 = S. | last9 = Diez | first9 = B. | title = Atypical choroid plexus papilloma: clinical experience in the CPT-SIOP-2000 study. | journal = J Neurooncol | volume = 95 | issue = 3 | pages = 383-92 | month = Dec | year = 2009 | doi = 10.1007/s11060-009-9936-y | PMID = 19543851 }}</ref> | ||
DDx: | |||
* | *[[Choroid plexus carcinoma]]. | ||
* | *[[Metastatic]] papillary carcinoma. | ||
* | *[[Endolymphatic sac tumour]] (ELST). | ||
===Images=== | ===Images=== | ||
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www: | www: | ||
*[http://path.upmc.edu/cases/case551.html Choroid plexus papilloma - oncocytic variant - several images (upmc.edu)]. | *[http://path.upmc.edu/cases/case551.html Choroid plexus papilloma - oncocytic variant - several images (upmc.edu)]. | ||
==IHC== | |||
*CK7 +ve. | |||
*CK20 -ve (typically). | |||
*S-100 +ve/-ve. | |||
*EMA -ve. | |||
*GFAP +ve/-ve. | |||
*Kir 7.1 +ve. | |||
*EAAT1 +ve. | |||
==See also== | ==See also== | ||