Diagnosis With Brief Discussion
Relapsing polychondritis (RP) is a rare multisystem autoimmune disease of unknown origin characterized by recurrent episodes of inflammation and progressive destruction of cartilaginous tissues. Elastic cartilage of the ears and nose, hyaline cartilage of peripheral joints, vertebral fibrocartilage and tracheobronchial cartilage, as well as proteoglycan-rich structures of the eye, heart, blood vessels or inner ear may all be affected. In most patients RP manifests in a fluctuating but progressive course which eventually results in a significant shortening of life expectancy.
About 20% of patients have respiratory symptoms at presentation, and eventually a third to a half of the patients will develop respiratory tract involvement manifested by laryngeal tenderness, hoarseness, dyspnea, and stridor or wheeze.
Airway involvement causes narrowing, primarily of the larynx or trachea, but the major bronchi can also be involved. Stenoses are much less common and usually single and localized, but they can be multiple. The most common CT manifestations were increased attenuation and smooth airway wall thickening that notably spared the posterior membranous portion of the airway. Lobar air trapping and airway collapse at end expiration were seen in half of patients, likely due to loss of cartilaginous support of airway walls.
Diagnostic Criteria | Clinical Features |
The presence of three or more of the given clinical features
by McAdam et al (1976) |
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The presence of any one of the given combinations
by Damiani and Levine (1979) |
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