Relapsing polychondritis causing breathlessness: Two case reports

Table 1 Existing diagnostic standards for relapsing polychondritis

Ref.	Symptoms	Diagnostic requirements
McAdam et al[10]	Bilateral auricle chondrolitis; eye inflammation; nasal chondrolitis; nonaggressive polyarthritis; larynx and/or tracheochondrolitis; cochlear implant and /or vestibular damage	Patient with ≥ 3 symptoms
Damiani et al[11]	A: Patients meeting ≥ 3 standards in the McAdam standard; B: > 1, plus pathological confirmation; C: lesions involving ≥ 2 anatomical sites, effective with glucocorticoids or dapsone	Patient meeting any one of the criteria
Michet et al[12]	Main manifestations: repeated cartilage inflammation of bilateral auricle; nasal chondrositis; larynx and/or bronchobronchial chondroitis. Secondary manifestations: inflammation of the eye; impaired hearing; impaired vestibular function; serum-negative arthritis	Diagnosed with two main manifestations or one main plus two secondary manifestations
Rose et al[13]	Main manifestations: repeated cartilage inflammation in both auricle; nasal cartilage; eye inflammation; larynx and/or bronchobronchial chondroitis. Secondary manifestations: hearing impairment; impaired vestibular function; serum-negative arthritis	Diagnosed with two main manifestations or one main plus two secondary manifestations