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Introduction. Sinusitis diagnosis rare 25 years agoBetter understandingpathophysiology, etiology, treatment outcomesBetter diagnostic techniques5-10% of viral URI's complicated by bacterial rhinosinusitisNumerous controversies in diagnosis and treatment. Anatomy. Maxillary Sinusfirst to develop at day 65 of gestationseen on plain films at 4-5 monthsgrowth in phases at 3 years and 7 to 12 yearsslow expansion until 18 yearsaverage capacity is 14.75 mLdrains into middle meatus.
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