Overview
Radiation pneumonitis (RP) is an inflammatory lung condition that can occur following radiation therapy, particularly in patients with lung cancer. Despite advancements in radiotherapy techniques, it remains a significant complication with variable clinical presentations 1.Diagnosis
Clinical Presentation: Often presents with dyspnea, cough, and fever 1.
Diagnostic Approach: Diagnosis is typically made through exclusion of other causes; imaging (CT scans) often shows characteristic interstitial changes 1.
Grading: Commonly assessed using scales like the Common Terminology Criteria for Adverse Events (CTCAE), ranging from Grade 1 (mild) to Grade 5 (fatal) 1.
Early Onset: Hyperacute cases can manifest within days post-therapy, requiring prompt recognition 2.Management
First-Line Treatment: Corticosteroids (e.g., prednisone) are the mainstay of treatment, often initiated at moderate doses (e.g., 40 mg/day) 12.
Adjunctive Therapy: In severe cases, immunosuppressive agents like infliximab or mycophenolate mofetil may be considered, though evidence is limited 1.
Monitoring: Regular follow-up with imaging and clinical assessment to monitor response and adjust therapy 1.Special Populations
Comorbidities: Patients with idiopathic pulmonary fibrosis (IPF) are at higher risk for developing RP 1.
Other Populations: Specific guidance for pregnancy, pediatrics, and elderly patients is not detailed in the provided abstracts 1.Key Recommendations
Use dosimetric constraints to minimize RP incidence (Evidence: Strong) 1.
Corticosteroids are recommended as first-line treatment for RP (Evidence: Strong) 12.
Consider patients with idiopathic pulmonary fibrosis as high-risk for RP development (Evidence: Moderate) 1.References
1 Ruysscher D, Wauters E, Jendrossek V, Filippi AR, Revel MP, Faivre-Finn C et al.. Diagnosis and treatment of radiation induced pneumonitis in patients with lung cancer: An ESTRO clinical practice guideline. Radiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology 2025. link
2 Goldman AL, Enquist R. Hyperacute radiation pneumonitis. Chest 1975. link