CTICasesHemorrhagic Metastatic Angiosarcoma
Imaging findings
CT chest shows rapidly progressive, bilateral ground-glass halo opacities, thick-walled cavitary nodules, and hemorrhagic pleural effusions that evolved into large, infiltrative lung masses over several months. Histopathology confirmed metastatic angiosarcoma.
Key takeaways
Angiosarcoma is a highly malignant vascular tumor that commonly metastasizes to the lungs. Radiologically, it is notorious for causing diffuse alveolar hemorrhage and mimicking vasculitis or necrotizing infection. The hallmark CT finding is nodules surrounded by a ground-glass halo (representing hemorrhage) and hemorrhagic effusions.
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