CTICasesLiposarcoma Biopsy Tract Seeding
Imaging findings
Chest CT shows a rapidly growing left pleural-based soft tissue mass in a patient with a history of metastatic liposarcoma who previously underwent a needle biopsy of a small pulmonary nodule. The pleural mass developed along the trajectory of the prior biopsy tract.
Key takeaways
Tumor seeding along a biopsy tract is a rare but well-documented complication of percutaneous needle biopsy of sarcomas and other malignancies. Biopsy of suspected sarcomas should be discussed with a thoracic surgeon to ensure the biopsy tract can be resected during surgery.
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