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Benign Metastasizing Leiomyomatosis

Imaging findings

Numerous, smooth, well-defined pulmonary nodules with a hematogenous distribution. One lesion appeared more aggressive/necrotic.

Key takeaways

Often follows uterine surgery, which allows leiomyoma cells to enter the bloodstream. Despite the term "benign," these can be progressive and potentially undergo malignant degeneration.

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