Letter S

Sinusitis

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<B>Sinusitis:</B> Sinusitis is inflammation of the lining membrane of any of the hollow areas (sinuses) of the bone of the skull around the nose.

The sinuses are directly connected to the nasal cavities.</P> <B>Picture of the anatomy of the sinuses</B><BR><IMG height=525 alt='Picture of the anatomy of the sinuses' src='http://images.medicinenet.com/images/eMedicineHealth/illustrations/sinus_1.jpg' width=450 border=0></P> <B>Picture of the detail of the sinuses</B><BR> <IMG height=525 alt='Picture of the detail of the sinuses' src='http://images.medicinenet.com/images/illustrations/sinus_2.jpg' width=450 border=0>

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