title: Pulmonary artery pseudoaneurysm after radiofrequency ablation: report of two cases.
abstract: We report two cases of pulmonary arterial pseudoaneurysms (PAs) following percutaneous radiofrequency ablation (PRFA). The first patient was a 74-year-old Caucasian man who was treated for a secondary location of an advanced melanoma. A computed tomography scan at 72 h after the procedure, performed for basithoracic pain, hyperthermia and haemoptysis, revealed a 17-mm PA within the ablative zone. A lobectomy was performed. The second patient was an 80-year-old white man followed up for a right apical lung adenocarcinoma. Massive haemoptysis occurred 24 h after PRFA; emergent contrast-enhanced CT and pulmonary arteriography revealed a pulmonary artery PA (20 mm diameter), which was embolised with coils. The initial clinical course was satisfactory; however, 15 days after the procedure, the patient unfortunately presented a new massive haemoptysis and died a few hours later. The long ablation duration and the multiple repositioning of the electrodes might have been risk factors for this rare and potentially lethal complication.
authors.affiliation: Department of Radiology, Saint André Hospital , Bordeaux , France .
authors.forename: Sophie
authors.initials: S
authors.lastname: Borghol
authors.forename: Nicolas
authors.initials: N
authors.lastname: Alberti
authors.forename: Nora
authors.initials: N
authors.lastname: Frulio
authors.forename: Amandine
authors.initials: A
authors.lastname: Crombe
authors.forename: Marion
authors.initials: M
authors.lastname: Marty
authors.forename: Alain
authors.initials: A
authors.lastname: Rolland
authors.forename: Herve
authors.initials: H
authors.lastname: Trillaud
mesh_terms: D000230:Adenocarcinoma / Q000556:secondary / Q000628:therapy*; D000077192:Adenocarcinoma of Lung; D000368:Aged; D000369:Aged, 80 and over; D017541:Aneurysm, False / Q000209:etiology*; D017115:Catheter Ablation / Q000009:adverse effects*; D004621:Embolization, Therapeutic / Q000009:adverse effects*; D006801:Humans; D008175:Lung Neoplasms / Q000556:secondary / Q000628:therapy*; D008297:Male; D008545:Melanoma / Q000473:pathology / Q000628:therapy*; D011651:Pulmonary Artery; D012878:Skin Neoplasms / Q000473:pathology / Q000628:therapy*
keywords: Complication; lung; metastasis; pseudoaneurysm; pulmonary artery; radiofrequency ablation