CNS Infections, HIV/AIDS, CNS Tumors, Psychiatric Sxs of Tumors & Infections, Surfboard Repair, etc.-Rothrock Flashcards
What are the major Primary CNS tumors?
- astrocytomas
- oligodendrogliomas
- ependymomas
- meningiomas (sort of)
- others (pituitary adenomas, chordomas, craniopharyngiomas, pinealomas)
What is the most common way to get metastatic brain tumors?
Lung (50%)
Breast (15%)
Melanoma (10%)
GI, gynecologic, urologic (10%)
Are mets to the brain typically unifocal or multifocial?
multifocal (75%)
Lung, melanoma, and tumors of unidentified origin are typically (blank) metastases
multiple
What lobes of the brain are most commonly involved with metastases?
frontal and parietal
What are the cranial nerve tumors?
- acoustic “neuroma” (schwannoma)
- optic nerve glioma
What are the spinal nerve tumors?
- extradural (metastatic)
- intradural/extramedullary (meningioma)
- intramedullary (astrocytoma, ependymoma)
What is the hallmark of extradural mets?
PAIN!!
What are the 2 types of intramedullary tumors?
astrocytoma and ependymoma
What is the intradural/extramedullary tumor?
meningioma
What is the meningeal tumor?
carcinomatous meningitis
What are the five types of CNS infections?
- meningitis
- encephalitis
- meningoencephalitis
- abscess> brain versus spinal canal
- HIV
What are the subtypes of infectious meningitis?
What microorganism causes each of these?
acute> bacterial, viral
subacute> tuberculous
chronic> fungal (cryptococcus, coccidiomycosis)
If you check a meningitis patient's CSF and this is what you find: glucose low (even zero), protein high (up to a gram or more), WBCs (polys) 100s to 1,000s/cubic mm
What caused their meningitis?
bacteria
If you check a meningitis patient’s CSF and this is what you find:
glucose normal (nl >50 mg/dl), protein ~75-250, WBCs (lymphs) ~50-500
What caused their meningitis?
Viral