Percutaneous Ablation

With the advent of newer minimally invasive techniques such as percutaneous ablative mechanisms, recurrence at needle tract sites may occur.

Although local recurrence of renal cell carcinoma has been reported following percutaneous radio frequency ablation (97), no radio frequency-, cryo-, or microwave-probe tract recurrences have been reported in the urologic literature to date.

In addition, hepatocellular carcinoma seeding has been reported following radio frequency ablation and subcutaneous needle-tract recurrence at a paracentesis site in a patient with ovarian carcinoma (98-100). While the incidence of access site seeding with needle ablative technologies, in the treatment of malignancy, appears to be low these case reports support the theoretical possible for access site contamination and should factor into the surgeons decision to use minimally invasive techniques.

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