CTICasesExtrapleural lipoma
Imaging findings
Serial CT scans over ten years show a large, homogeneous, fat-attenuation mass containing a few thin septations, arising from the extrapleural space of the left upper chest wall and demonstrating progressive enlargement without FDG avidity on PET.
Key takeaways
Extrapleural lipomas are benign fatty neoplasms of the chest wall. They are characterized by homogeneous fat attenuation on CT and lack of metabolic activity, but can slowly enlarge over time and should be monitored to exclude low-grade liposarcoma.
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