Comprehensive Diagnostic & Therapeutic Reference Profile
Also known as: RP; Meyenburg-Altherr-Uehlinger Syndrome; Atrophic Polychondritis
Relapsing Polychondritis (RP) is a rare, episodic, systemic autoimmune disorder characterized by recurrent inflammatory episodes of cartilaginous structures. While it primarily targets the ear, nose, and laryngotracheobronchial tree, it frequently involves systemic organs, including the eyes, heart, skin, and joints. The clinical course is highly variable, ranging from mild, localized disease to life-threatening multiorgan involvement.
The exact cause remains idiopathic, though it is categorized as an autoimmune disease. It is strongly associated with an aberrant immune response against type II collagen and other cartilage-associated matrix proteins. There is no clear lifestyle trigger, though approximately 30% of cases are associated with other autoimmune conditions, suggesting a multifactorial genetic predisposition.
RP involves cell-mediated and humoral immune mechanisms. T-cells and inflammatory cytokines (TNF-α, IL-1, IL-6) infiltrate the cartilage matrix, leading to the release of proteases that degrade proteoglycans and collagen. This results in the loss of structural integrity, thinning of cartilage, and subsequent fibrous replacement.
RP is extremely rare, with an estimated incidence of 3.5 per million person-years. It typically presents between the ages of 40 and 60, though it can occur at any age. There is no significant gender predisposition.
A. Early Symptoms
Inspection may show "cauliflower ear" (sparing the earlobe), saddle-nose deformity, and erythematous sclera. Auscultation may reveal new murmurs indicating aortic or mitral insufficiency. Palpation of the sternoclavicular joints often reveals tenderness.
A. Clinical Assessment: McAdam criteria (clinical diagnosis based on manifestations).
B. Laboratory Testing: Elevated inflammatory markers.
C. Imaging Studies: CT/MRI for airway assessment.
D. Functional Tests: Pulmonary Function Tests (PFTs).
E. Biopsy Findings: Lymphocytic infiltration of cartilage.
F. Genetic Testing: Not diagnostic but used for HLA-typing.
G. Differential Diagnosis: Granulomatosis with polyangiitis, Wegener’s, infection.
Test Name: Erythrocyte Sedimentation Rate (ESR)
Type: Blood Test
Purpose: Assess systemic inflammation
Expected Findings: Elevated
Interpretation: Correlates with disease activity
CT Chest (High Resolution): Essential to evaluate tracheal narrowing and malacia; determines the need for airway intervention.
Granulomatosis with polyangiitis (GPA) typically involves the sinuses and kidneys; RP spares the lobule of the ear, while infectious perichondritis usually affects the entire pinna.
A. Lifestyle Modifications: Avoid tobacco to protect airway health.
B. Preventive Measures: Vaccination for pneumococcal/influenza due to immunosuppression.
C. Medical Treatment:
Prognosis has improved significantly with modern immunosuppressive therapy. Mortality is typically due to airway obstruction or cardiovascular complications.
No primary prevention. Secondary prevention focuses on early detection to avoid irreversible cartilaginous damage.
The following homeopathic remedies have been historically indicated for symptoms associated with Relapsing Polychondritis. Selection should be based on individualized symptom totality and constitutional assessment.
This clinical reference profile is compiled from authoritative medical sources for educational purposes. Always verify clinical data with current medical guidelines.
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