Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
14 Cards in this Set
- Front
- Back
|
Polymicrobial abscess: symptoms
|
headache, drowsiness, confusion, hemiparesis, seizure, fever
Usuall NOT a stiff neck |
|
|
Polymicrobial abscess: diagnosis
|
CT scan FIRST
4-5 days: abscess surrounded with fibrous capsule Ring-enhancing appearance on CT |
|
|
Polymicrobial abscess: E/P
|
50% polymicrobial
Streptococcus most common AIDS pts: toxoplasma & cryptococcus |
|
|
Cryptococcus neoformans: VF
|
CHRONIC MENINGOENCEPHALITIS
FUNGAL Localized in lungs or disseminate capsule melanin: protects against macrophages phospholipase B: degrades host phospholipids Urease |
|
|
Cryptococcus neoformans: E/P
|
CHRONIC MENINGOENCEPHALITIS
FUNGAL Aquisition: inhalation distribution: pigeon poop, rotting wood |
|
|
Cryptococcus neoformans: Clin ID
|
CHRONIC MENINGOENCEPHALITIS
FUNGAL Gram positive yeast India ink positive Calcoflour White positive urease positive capsular Ag |
|
|
Coccidiodes imitis: VF
|
CHRONIC MENINGOENCEPHALITIS
FUNGAL Valley Fever Transform to spherule in lung Outbreaks occur after earthquakes, excavation, dust storms |
|
|
Coccidiodes imitis: P/E
|
CHRONIC MENINGOENCEPHALITIS
FUNGAL Valley Feve Acute resp infection 7-21 days afer exposure, resolves rapidly inhaled, person --> person flu-like symp 1% spread to CNS |
|
|
Histoplasma capsulatum: P/E
|
CHRONIC MENINGOENCEPHALITIS
FUNGAL North American Histoplasmosis Macroconidia from soil Can disseminate to CNS Found in bird and bat droppings Can be confused with TB |
|
|
Trypanosoma cruzi: Clinical parameters
|
CHRONIC MENINGOENCEPHALITIS
PARASITE From bit of triatome bug South America Sore--> fever& acute encephalitis |
|
|
Plasmodium falciparum: Clin parameters
|
CHRONIC MENINGOENCEPHALITIS
PARASITE Malaria From mosquito fever, chills, anemia can travel to CNS fatal fast |
|
|
How do microbes transverese BBB or B-CSF barrier?
|
Infecting cells of barrier
Passive transport in intracellular vacuoles Carried across by WBC |
|
|
Most common cause of ring-enhancing lesions in AIDS pt?
|
Toxoplasma gondii
|
|
|
What causes most encephalitis?
|
Viral infection of the brain
|
