polyps
cause polyps
(2)由伸入窦腔的(3）粘膜下牙根脓肿牙根直接感染(1）经上领窦传入Dental infection
cause Dental infection
causeNasal packing
cause Nasal packing
cauedemaThe main cause is due to theobstructionoftheOMc
cause edema The main cause is due to the obstruction of the OMC
Pathology of sinusitisAcuteinflammationof sinusmucosacauses hyperaemia,exudationof fluid,outpouringof polymorphonuclearcells.Dependingonthevirulenceoforganismsdefences of the host and capability of thesinusostiumto drainthe exudates,thediseasemaybe mild orsevere
Pathology of sinusitis • Acute inflammation of sinus mucosa causes hyperaemia, exudation of fluid, outpouring of polymorphonuclear cells. Depending on the virulence of organisms, defences of the host and capability of the sinus ostium to drain the exudates, the disease may be mild or severe