Clinical Presentation
A 55-year-old woman with a history of epistaxis and headache.
Imaging Findings
(A–C) Contrast-enhanced computed tomography (CT) of the chest. Axial (A), coronal (B), and sagittal (C) maximum-intensity-projection reconstructions demonstrate multiple dilated vascular structures with prominent connecting vessels throughout the right lung, consistent with arteriovenous (AV) malformations (arrows).
Differential Diagnosis
• Hereditary hemorrhagic telangiectasia (HHT; Osler-Weber-Rendu disease):
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