CTICasesMetastatic Leiomyosarcoma of Prostate Origin
Imaging findings
Initially identified as a loculated pleural effusion in the fissure, this lesion grew over two months, exhibiting lobulated soft tissue. Later, the mass migrated posteriorly into the pleural space, likely due to a stalk-like attachment. It was associated with tumor extension through the iliac venous system from a large primary prostate mass.
Key takeaways
Metastatic lesions, while rare, can exhibit migratory behavior within the pleural space if pedunculated. Prostate leiomyosarcoma is an extremely rare entity compared to its uterine counterpart.
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