sinusitis, inflammation of paranasal cavities. 3d showing purulent inflammation of maxillary sinuses

sinus frontal man sinusitis frontitis male staphylococcus 3d paranasal illustration respiratory anatomy human mrsa microbial science nose acute viral treatment bacterial medical virus inflammation allergic cavity closeup disease anatomical nasal sick infection cold illness medicine bacteria chronic microbe macro rhinosinusitis streptococcus pyogenes pseudomonas klebsiella patient african afro american black skin indian arab