Fourth ventricle choroid plexus papilloma [Neurosurgery Wiki]

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====== Fourth ventricle choroid plexus papilloma ======

In childhood, [[choroid plexus papilloma]] CPPs are usually found in the [[lateral ventricle]]s and less commonly in the [[posterior fossa]]. On the contrary, in [[adult]]s, the majority of these [[tumor]]s are found in the [[fourth ventricle]] and its [[lateral recess]]es
((Lee SH, Park BJ, Kim EJ, Lim YJ. Atypical choroid plexus papilloma in an
adult. J Korean Neurosurg Soc. 2009 Jul;46(1):74-6. doi:
10.3340/jkns.2009.46.1.74. Epub 2009 Jul 31. PubMed PMID: 19707500; PubMed
Central PMCID: PMC2729831.
)).

A case of 72-year-old man with posterior fossa lesion operated with provisional diagnosis of metastasis, but turn out to be CPP
((Umredkar AA, Chhabra R, Bal A, Das A. Choroid plexus papilloma of the fourth
ventricle in a septuagenarian. J Neurosci Rural Pract. 2012 Sep;3(3):402-4. doi: 
10.4103/0976-3147.102643. PubMed PMID: 23189015; PubMed Central PMCID:
PMC3505354.
)).

===== Differential diagnosis =====

Medulloblastoma.

[[Atypical teratoid/rhabdoid tumor]] (AT/RT).

Ependymoma.

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