Sinus
01
an air-filled cavity, especially within the bones of the skull
Exempel
CT scans showed fluid buildup in the sinuses.
02
a wide blood channel that lacks the lining of a typical blood vessel
Exempel
Venous sinuses collect blood from surrounding tissues.
03
an abnormal channel that drains a pus-filled cavity to the body surface
Exempel
Sinus tracts often require surgical intervention.
