Intracranial pseudolymphoma.
Intracranial pseudolymphoma is a rare tumor of the central nervous system. A 35-year-old woman presented with a frontal subcutaneous tumor. Magnetic resonance imaging revealed a left frontal meningeal tumor involving subcutaneous tissue without bone involvement. The mass was completely removed and the histological aspect of all tumor sections was that of a lymphoid hyperplasia with polyclonal proliferation. These findings were characteristic of pseudolymphoma defined as a hyperplasia of follicular and diffuse lymphoid type with assessment of its polyclonality by immunophenotyping on frozen sections, completed by molecular biology techniques.
Donnet
A
A
Neurosurgical Department, CHU Timone, Marseille, France. adonnet@ap-hm.fr
Horschowski
N
N
Dufour
H
H
Figarella-Branger
D
D
Bryon
P A
PA
Berger
F
F
Harle
J R
JR
Grisoli
F
F
D000328:Adult; D001921:Brain / Q000473:pathology; D001932:Brain Neoplasms / Q000175:diagnosis* / Q000601:surgery; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D019310:Pseudolymphoma / Q000175:diagnosis* / Q000601:surgery