title: Coexistence of diffuse large B-cell lymphoma within pontocerebellar angle schwannoma.
abstract: We present an unusual case of diffuse large B-cell lymphoma within pontocerebellar angle schwannoma in 62-year-old woman. The patient suffered for 5 months with V, VII and VIII nerves paresis and with cerebellar ataxia. CT scan demonstrated large hyperdensive mass in cerebellopontine angle translocating cerebellar hemisphere and cerebral trunk. The patient was subjected to surgery and the tumour was removed totally by suboccipital retromastoidal right craniectomy approach. Histopathological examination revealed schwannoma infiltrated with high grade B-cell lymphoma. The patient did well following surgery without any other lymphoma manifestations, and she died from a heart attack 20 months later. Solitary lymphoma of pontocerebellar angle coexisting with schwannoma is an unusual finding, thus our case is the first report.
authors.affiliation: Department of Neurosurgery, Copernicus Hospital, Lódź, Poland.
authors.forename: Paweł
authors.initials: P
authors.lastname: Kolasa
authors.forename: Radzisław
authors.initials: R
authors.lastname: Kordek
mesh_terms: D020295:Brain Stem Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging; D002528:Cerebellar Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D016393:Lymphoma, B-Cell / Q000175:diagnosis* / Q000000981:diagnostic imaging; D016403:Lymphoma, Large B-Cell, Diffuse / Q000175:diagnosis* / Q000000981:diagnostic imaging; D008875:Middle Aged; D009442:Neurilemmoma / Q000175:diagnosis* / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed