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  1. Home
  3. Lung Injury After Precision Radiotherapy: Temporal Evolution, Potential Pitfalls, And Complications.
  1. Home
  3. Lung Injury After Precision Radiotherapy: Temporal Evolution, Potential Pitfalls, And Complications.

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Lung Injury after Precision Radiotherapy: Temporal Evolution, Potential Pitfalls, and Complications.

Omar Andrés Pantoja-Burbano1, María Alejandra Amaya-Trigos1, Felipe Aluja-Jaramillo1

  • 1Department of Radiology, Pontificia Universidad Javeriana-Hospital Universitario San Ignacio, Ak 7 #40-62, Bogotá, Colombia.

Radiographics : a Review Publication of the Radiological Society of North America, Inc
|April 16, 2026

View abstract on PubMed

Summary
This summary is machine-generated.

High-precision radiation therapy improves lung cancer targeting but can cause radiation-induced lung injury (RILI). Understanding RILI

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Area of Science:

  • Radiology
  • Oncology
  • Pulmonology

Background:

  • High-precision radiation therapy (HPRT) enhances lung cancer treatment by improving tumor targeting and reducing damage to surrounding lung tissue.
  • Radiation-induced lung injury (RILI) remains a frequent complication, presenting as acute pneumonitis or chronic fibrosis.
  • HPRT is linked to delayed and localized RILI compared to conventional methods.

Purpose of the Study:

  • To detail the temporal evolution and imaging features of RILI following HPRT.
  • To identify potential diagnostic challenges in interpreting RILI.
  • To discuss differential diagnoses including malignancy recurrence and other pulmonary complications.

Main Methods:

  • Review of radiologic patterns of RILI after HPRT.
  • Analysis of temporal evolution of pneumonitis and fibrosis.
  • Comparison of RILI imaging findings with tumor recurrence and other post-treatment changes.

    • Main Results:

    • RILI after HPRT typically manifests with delayed onset: pneumonitis around 3 months and fibrosis starting after 9 months.
    • Radiologic findings of RILI are often confined to the irradiated lung volume, mimicking tumor recurrence.
    • Imaging features range from masslike to scarlike opacities, necessitating careful interpretation.

    Conclusions:

    • Accurate interpretation of RILI imaging is crucial to prevent misdiagnosis of tumor recurrence.
    • Understanding the distinct radiologic features and timelines of RILI aids in differentiating post-treatment effects from malignancy.
    • Optimizing patient follow-up and outcomes relies on recognizing the specific characteristics of HPRT-induced lung injury.