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Acute Fibrinous Organizing Pneumonia (AFOP)

Acute Fibrinous Organizing Pneumonia (AFOP)▶ Watch on YouTube — age-restricted, cannot embed here

Imaging findings

The imaging shows bilateral multifocal peri-bronchovascular ill-defined nodular opacities, which later progress to geographic ground-glass opacities.

Key takeaways

AFOP can be an initial presentation of graft-versus-host disease following bone marrow transplant and can be mistaken for infection; it is generally steroid-responsive.

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