1. EXAM-READY DEFINITION Complications of sinusitis are local, regional, or distant pathological consequences arising from spread of infection or inflammation from the paranasal sinuses to adjacent structures such as the orbit, cranial cavity, bone, and soft tissues. They may occur …
1. EXAM-READY DEFINITION Chronic sinusitis (chronic rhinosinusitis) is a chronic inflammatory disease of the mucosa of the nose and paranasal sinuses persisting for more than 12 weeks, despite adequate medical treatment. It is characterized by persistent mucosal edema, impaired mucociliary …
1. EXAM-READY DEFINITION Acute sinusitis (acute rhinosinusitis) is an acute inflammatory condition of the mucosal lining of one or more paranasal sinuses, usually following a viral upper respiratory tract infection, with symptom duration less than 4 weeks. The condition almost …