出典:Wiktionary
sinusitis (usually uncountable, 複数形 sinusitises または sinusitides)
出典:Wikipedia
出典:『Wikipedia』 (2011/07/25 15:28 UTC 版)
Sinusitis is inflammation of the paranasal sinuses, which may be due to infection, allergy, or autoimmune issues. Most cases are due to a viral infection and resolve over the course of 10 days. It is a common condition; for example, in the United States more than 24 million cases occur annually.