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Pulmonology / Respiratory

Polymyositis/Dermatomyositis-ILD

ICD-10 Code
M33.92

Clinical Criteria for Polymyositis/Dermatomyositis-ILD.

Clinical Presentation & Protocol

Patient Usually Complains Of

Patient presents with progressive exertional dyspnea and non-productive cough. History significant for proximal muscle weakness, Gottron’s papules, or heliotrope rash. Review of systems positive for arthralgia, Raynaud’s phenomenon, and dysphagia. No reported fever or acute infectious symptoms. Symptoms are consistent with underlying inflammatory myopathy-associated interstitial lung disease.

Clinical Examination Findings

General: Patient in no acute distress, stable on room air. Respiratory: Bilateral fine end-inspiratory bibasilar crackles (Velcro-like). Skin: Presence of heliotrope rash, Gottron’s sign over MCP/IP joints, or periungual telangiectasia. Musculoskeletal: Symmetric proximal muscle weakness (Grade 4/5), no focal neurological deficits. Cardiovascular: Regular rate and rhythm, no peripheral edema.

Treatment Protocol

Initiate immunosuppressive therapy as per protocol (e.g., Glucocorticoids, Mycophenolate Mofetil, or Rituximab). Monitor pulmonary function tests (PFTs) and DLCO every 3 months. Maintain aggressive physical therapy for muscle weakness. Ensure prophylaxis for Pneumocystis jirovecii pneumonia (PJP) if on high-dose steroids. Follow-up with Rheumatology and Pulmonology.

Detailed clinical guide coming soon.