Rhinosinusitis: Types, Causes, Symptoms and Treatment
What are Paranasal Sinuses? Paranasal sinuses are hollow spaces in facial bones that are lined by the mucosa in continuation with the nasal cavity. The different types of paranasal sinuses include frontal sinus, maxillary sinus, ethmoid sinus, and sphenoid sinus named after the bone in which they are housed. Whenever there is any infection or…