Parenchymal involvement of the nervous system in lymphoma.
D003937:Diagnosis, Differential; D006801:Humans; D008223:Lymphoma / Q000175:diagnosis*; D016403:Lymphoma, Large B-Cell, Diffuse / Q000175:diagnosis*; D009423:Nervous System Neoplasms / Q000175:diagnosis*; D009886:Ophthalmoplegia / Q000175:diagnosis