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Do you know what ’ s in people ’ s head?. Brain tumors. 72 male HPI: presents to E.R. with history of confusion, change of personality, left sided H/A P/E: disorientation and aggressiveness, no focal signs Labs: WNL Imaging:. Brain tumors. Brain tumors. anatomy. Brain tumors.
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Brain tumors • 72 male • HPI: presents to E.R. with history of confusion, change of personality, left sided H/A • P/E: disorientation and aggressiveness, no focal signs • Labs: WNL • Imaging:
Brain tumors • anatomy
Brain tumors • DDx: • Benign • Congenital • AVM/aneurism • Acquired • Infectious (toxoplasmosis, cyst) • stroke • Malignant • Primary • metastatic
Glioblastoma multiforme Astrocytoma Oligodendroglioma Meningioma Brain stem tumors Medulloblastoma Ependymoma Sarcoma Lymphoma Craniopharyngioma Neurofibroma Germ cell tumors Schwannoma Pituitary tumors meningioma Brain tumors
Brain tumors • Metastases • Single • Multiple
Brain tumors • Management: • Medical support (steroids + PPI) • Staging • Surgical resection if indicated • Adjuvant therapies
GBM • Radiation therapy • Standard dose: 60 Gy / 30 fractions • O.S. = 42 weeks (1979 study) • Radiation therapy + chemotherapy • Meta analysis shows improvement in general
GBM • Best results to date: • Combination with temozolomide • 75 mg/m2 po od x 6 weeks (concurrent with xrt), then 150 mg/m2 po od on d1-5 every 28 days x 6 cycles
GBM • If poor performance status • Hypofractionated xrt: • 40/15 • 35/10
Brain tumors • 57 male • HPI: known lung cancer; developped gait instability • P/E: cerebellar exam abnormal • Imaging
Brain tumors • Cerebellar metastasis on CT scan • Management: • Supportive care • Decadron (10 mg stat, then 4 mg po QID) + PPI
Brain mets • Depends on stability of peripheral disease and extend of intra cerebral disease: • Peripheral disease stable: • confirm solitary status with MRI • If solitary: • consider surgical resection or stereotactic radiosurgery • Whole Brain Radiation Therapy (WBRT)
Surgery Diagnostic Quicker steroid taper Quicker symptom relief Limited by localisation SRS Non invasive Less risk Less expensive Limited by size Radioresistance Melanoma Sarcoma Brain mets
Brain mets • peripheral disease stable • More than 1 lesion • Surgery less of a consideration • WBRT +/- stereotactic radiosurgery boost • Criteria: • < or = 3 lesions • Volume: < 4 cm • Prognostic > 3 months • KPS >70
Brain mets • peripheral disease not stable • Palliative radiation therapy • Re-irradiation on a case by case basis
Brain mets • Prognostic: • Untreated: 1 month • Steroids: 2 months
Brain mets • Radiation therapy
Brain mets • Side effects • Alopecia • Skin erythema • Fatigue • Neurocognitive changes
Brain mets • Role of WBRT