title: Thoracoabdominal wall tumour seeding after percutaneous radiofrequency ablation for recurrent colorectal liver metastatic lesion: a case report with a brief literature review.
abstract: Radiofrequency is a safe and effective minimally invasive procedure in the treatment of liver and other organs neoplastic lesions. Percutaneous access of neoplastic liver tissue is the most common access and electrodes are placed with imaging guidance into the tumour to be ablated. Complications during and after radiofrequency ablation (RFA) are of major or minor severity. Tumour dissemination related to the percutaneous access seems to be very unusual. Herein, we present a rare case of thoracoabdominal tumour wall dissemination after RFA of a recurrent hepatic colorectal metastasis previously removed by surgery. A 64-year-old man with a recurrent hepatic metastatic lesion was treated with internally cooled radiofrequency (RF) for ablation of a 3x3 cm in size tumour mass. Two sessions of RFA in one-month period were performed. Computed tomography (CT) of the upper abdomen and carcinoembryonic (CEA) antigen were used for estimation of the disease progression in the patient's follow-up. Ten months after RFA the patient presented abdominal pain and a mass appeared on the right thoracoabdominal area with simultaneous lung metastases. In conclusion, a large size, bulky and superficial mass on the liver parenchyma adjacent to the thoracoabdominal wall as well as multiple RFA sessions, seem to represent risk factors for tumour dissemination through the needle electrode used during the RFA procedure in hepatic metastases of colorectal cancer.
authors: Third Department of Surgery, Athens University Medical School, Athens, Greece.
authors: A
authors: A
authors: Charalampopoulos
authors: A
authors: A
authors: Macheras
authors: E
authors: E
authors: Misiakos
authors: A
authors: A
authors: Batistatou
authors: D
authors: D
authors: Peschos
authors: K
authors: K
authors: Fotiadis
authors: K
authors: K
authors: Charalabopoulos
mesh_terms: D000008:Abdominal Neoplasms / Q000175:diagnosis / Q000556:secondary*; D034861:Abdominal Wall; D017115:Catheter Ablation / Q000009:adverse effects*; D015179:Colorectal Neoplasms / Q000473:pathology*; D005500:Follow-Up Studies; D006801:Humans; D008113:Liver Neoplasms / Q000175:diagnosis / Q000556:secondary / Q000601:surgery*; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local / Q000175:diagnosis / Q000556:secondary / Q000601:surgery*; D009366:Neoplasm Seeding; D013899:Thoracic Neoplasms / Q000175:diagnosis / Q000556:secondary*; D035441:Thoracic Wall; D014057:Tomography, X-Ray Computed