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Glossary of HIV/AIDS-Related Terms - AIDSinfo - National Institutes ...

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A<br />

B<br />

C<br />

D<br />

E<br />

F<br />

G<br />

H<br />

I<br />

J<br />

K<br />

L<br />

M<br />

N<br />

O<br />

P<br />

Q<br />

R<br />

S<br />

T<br />

U<br />

V<br />

W<br />

X<br />

Y<br />

Autoimmune Disorder<br />

A condition that occurs when the immune system mistakenly attacks<br />

and destroys healthy body tissue. Autoimmune disorders may be<br />

caused by drugs used to treat opportunistic infections.<br />

SEE RELATED TERM(S): Immune System<br />

Avascular Necrosis (AVN)<br />

Death <strong>of</strong> bone tissue (osteonecrosis) due to a lack <strong>of</strong> blood supply.<br />

Avascular necrosis (AVN) most commonly affects the hip. Symptoms<br />

include pain in the affected area <strong>of</strong> the body, limited range <strong>of</strong> motion,<br />

joint stiffness, muscle spasms, and limping. AVN is associated with<br />

several medical conditions, including cancer and <strong>HIV</strong> infection.<br />

SEE RELATED TERM(S): Osteonecrosis<br />

12 <strong>HIV</strong>/<strong>AIDS</strong> <strong>Glossary</strong>

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