All of the following are true about Primary CNS Lymphoma except:
Most common type in immunocompetent patients is DLBCL
Glucocoicoids should be given before biopsy to reduce the risk of edema
Stereotactic biopsy is necessary for histologic diagnosis
High-dose methotrexate is used for the treatment
PCNSL: Has increased incidence in immunocompromised patients Most common type in immunocompetent patients is DLBCL Lymphoma anywhere in the body- Biopsy is needed for diagnosis In PCNL - Stereotactic biopsy is necessary for histologic diagnosis Steroids are C/I as they have cytolytic effect on tumor PCNL is also known as Ghost tumor - tumor disappear if given steroids Treatment: Chemotherapy - high dose Methotrexate
CNS Tumors