The paranasal sinuses are air-filled cavities of the bony skull, they are connected to the nasal cavity by conduits. The acute sinusitis is often caused by viruses, but also bacteria. It usually arises after inflammation Read More
The paranasal sinuses are air-filled cavities of the bony skull, they are connected to the nasal cavity by conduits. The acute sinusitis is often caused by viruses, but also bacteria. It usually arises after inflammation Read More
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