Brain Tumors Flashcards
Brain tumors may be primary, arising from tissues within the ______, or secondary, resulting from ______.
Brain
Metastasis
The most common primary brain tumors originate in ______. These tumors are called ______.
Astrocytes
Gliomas
Brain tumors rarely metastasize outside of the ______.
CNS
______ is a common problem. ______ are common in gliomas. Nausea and vomiting can occur from increased ______. Cognitive dysfunction, personality changes, muscle weakness, sensory losses, aphagia, and visual-spatial dysfunction are also manifestations of brain tumors
Headache
Seizures
ICP
If the tumor mass obstructs the ventricles _______ can occur. Unless treated, all brain tumors were eventually cause death from increasing tumor volume leading to increased ______.
Hydrocephalus (can be treated with placement of a ventricular shunt)
ICP
New onset of ______ or adult onset of ______ can be indicative of a brain tumor. ______ and ______ allows for detection a very small tumors. ______ and brain ______ are used to diagnose the location of the lesion.
Seizures, Migraines
MRI, PET
CT, Scanning
(the correct diagnosis can be made by obtaining tissue for histologic study which is done at time of surgery)
Treatment goals for a brain tumor are aimed at (3)
- identifying tumor type and location
- removing or decreasing tumor mass
- preventing or managing increased ICP
______ ______ is the preferred treatment for brain tumors.
Surgical removal
_______ surgical techniques are used with greater frequency to perform a biopsy and remove small brain tumors
Stereotactic
Meningiomas and oligodendrogliomas can usually be ______ removed, whereas the more invasive gliomas and medulloblastomas can be only ______ removed
Completely
Partially
Surgery can ______ tumor mass, which decreases ICP, provides relief of symptoms, and extends survival time.
Reduce
______ therapy is used as a follow-up measure after surgery. Cerebral edema and rapidly increasing ICP may be a complication of radiation therapy, but they can be managed with high doses of ______.
Radiation
Corticosteroids
______ ______ is a method of delivering a highly concentrated dose of radiation precisely directed at a location within the brain.
Stereotactic radiosurgery
The effectiveness of chemotherapy has been limited by difficulty getting drugs across the ______. Chemotherapy wafers can be implanted a time of surgery. Intrathecal administration is another method.
BBB
Opening into the cranium with a drill used to remove localized fluid and blood beneath the dura
Burr Hole