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{{toplink
|backcolour = D1EEEE
|linkpage =Cardiorespiratory System - Pathology
|linktext =Cardiorespiratory System
|maplink = Cardiorespiratory System (Content Map) - Pathology
|pagetype =Pathology
|sublink1=Respiratory System Inflammation - Pathology
|subtext1=RESPIRATORY SYSTEM INFLAMMATION
}}
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===Location===
*Nasal cavity - rhinitis
*Paranasal sinuses - sinusitis
*Guttural pouch and eustachian tube - eustachitis
*[[Pharynx - Anatomy & Physiology|Pharynx]] - pharyngitis
*Trachea - tracheitis
*Bronchi - bronchitis
*Bronchioles - bronchiolitis
*Lungs - pneumonia/pneumonitis
*Pleura - pleuritis/pleurisy
===Type===
Grossly many inflammatory processes (eg: response to viral or bacterial infection) in the URT will begin as a serous discharge, and then progress to a catarrhal exudate, and then to purulent/pseudomembranous/haemorrhagic as neutrophils are recruited
*Serous - transparent fluid exudate (acute inflammation)
*Catarrhal - mucous exudation (acute to subacute inflammation)
*Pseudomembranaous - fibrin exudation
*Purulent - pus
*Ulcerative
*Haemorrhagic
*Granulomatous (chronic inflammation)
*Polypoid (chronic inflammation)
===Timecourse===
*Acute
*Subacute
*Chronic
===Causes===
*Infectious agent
**[[Respiratory Viral Infections - Pathology|Viral]]
**[[Respiratory Bacterial Infections - Pathology|Bacterial]]
**[[Respiratory Fungal Infections - Pathology|Fungal]]
**[[Respiratory Parasitic Infections - Pathology|Parasitic]]
*Trauma or foreign body (eg: grass seed)
*Irritants or allergens
*Neoplasia