26.02.2014 Views

Fungal and Parasitic Infections of the CNS - Inova Health System

Fungal and Parasitic Infections of the CNS - Inova Health System

Fungal and Parasitic Infections of the CNS - Inova Health System

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

Schistosomiasis<br />

<strong>CNS</strong> Metazoal infections: cestodes<br />

Cestodes (Tapeworms)<br />

Echinococcus granulosus<br />

(Hydatid disease)<br />

Cysticercus cellulosae<br />

(neurocysticercosis)<br />

Key features: adult tapeworm is not<br />

<strong>the</strong> problem, <strong>the</strong> immature form is<br />

ECHINOCOCCUS:<br />

-dog is definitive host; adult<br />

tapeworm is in dog intestine<br />

-infection <strong>of</strong> man is from<br />

contamination <strong>of</strong> food by dog feces,<br />

frequent intimate contact with dogs +<br />

poor hygiene<br />

-Brain cyst (3% patients) usually<br />

solitary, unilocular, cerebral<br />

hemispheres<br />

American Journal <strong>of</strong> Neuroradiology 27:420-422, February 2006<br />

<strong>CNS</strong> Metazoal infections: cestodes<br />

• Cysticercosis is complicated by <strong>the</strong> fact<br />

that 2 diseases are possible in MAN:<br />

• The pig tapeworm Taenia solium remains<br />

intestinal in MAN<br />

• <strong>the</strong> larval stage Cysticercus cellulosae<br />

infects multiple systemic organs in MAN,<br />

<strong>the</strong> most important <strong>of</strong> which is <strong>the</strong> BRAIN<br />

22

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!