Sinusitis, which primarily involves the anterior ethmoid air cells, can spread to the larger sinus cavities to cause acute and chronic secondary infection. Endoscopic and computed tomographic techniques enable earlier diagnosis and treatment of sinusitis and permanent cure. Primary care physicians should try to identify the disease before it reaches a stage where endoscopic control becomes difficult. Ultrasonography is now used in Europe to diagnose sinusitis and initiate treatment.
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