Sinusitis is defined as an inflammation of the lining of the membranes of any of the paranasal sinuses. The sinuses are lined with ciliated stratified columnar epithelium and are contiguous with ...

Short-term inflammation of mucous membranes of the paranasal sinuses that surround the nasal cavity. This results in running nose, sneezing and nose block. Acute sinusitis is often preceded by a ...