====== Intraventricular lymphoma ======
Intraventricular [[Primary central nervous system lymphoma]]s are very rare tumors and so far, less than 10 cases have been described in the literature
((Cecchi PC, Billio A, Colombetti V, Rizzo P, Ricci UM, Schwarz A: Primary high-grade B-cell lymphoma of the choroid plexus. Clin Neurol Neurosur 110:75-79,2008))
((Cheatle J, Aizenberg M, Weinberg JS, Surdell D: Atypical presentation of primary central nervous system non-hodgkin lymphoma in immunocompetent young adults. World Neurosurg 79(3-4):593.e9-13, 2013))
((Haegelen C, Riffaud L, Bernard M, Morandi X: Primary isolated lymphoma of the fourth ventricle-case report. J Neurooncol 51:129-131,2001))
((Hassan HA, Ramli NM, Rahmat K: Primary intraventricular lymphoma with diffuse leptomeningeal spread at presenta- tion. Ann Acad Med Singap 41:268-270,2012))
((Hill CS, Khan AF, Bloom S, McCartney S, Choi D: A rare case of vomiting: Fourth ventricular B-cell lymphoma. J Neurooncol 93:261-262,2009))
((Lettau M, Laible M: Primary intraventricular non-Hodgkin’s lymphoma of the CNS (Germany). RöFo 184:261-263,2012))
((Werneck LC, Hatschbach Z, Mora AH, Novarak EM: Meningitis caused by primary lymphoma of the central nervous system. Report of a case (Portuguese). Arq Neuropsiquiatr 35:366- 372,1977)).

See [[Fourth ventricle lymphoma]]