title: Pulmonary artery pseudoaneurysm related to radiofrequency ablation of lung tumor.
abstract: We describe a case of pulmonary artery (PA) pseudoaneurysm related to radiofrequency ablation (RFA) of lung tumor. We performed RFA for a pulmonary epithelioid hemangioendothelioma directly adjacent to a branch of the PA. Seventeen days later, the patient complained of hemoptysis. A chest CT image revealed PA pseudoaneurysm. Transcatheter coil embolization was performed 59 days after RFA. Although PA pseudoaneurysm is rare, with an incidence of 0.2% (1/538 sessions) at our institution, it should be recognized as a risk when treating lung tumors adjacent to a branch of the PA.
authors.affiliation: Department of Radiology, Okayama University Medical School, 2-5-1 Shikatacho, Okayama 700-8558, Japan. sakurai@cc.okayama-u.ac.jp
authors.forename: Jun
authors.initials: J
authors.lastname: Sakurai
authors.forename: Hidefumi
authors.initials: H
authors.lastname: Mimura
authors.forename: Hideo
authors.initials: H
authors.lastname: Gobara
authors.forename: Takao
authors.initials: T
authors.lastname: Hiraki
authors.forename: Susumu
authors.initials: S
authors.lastname: Kanazawa
mesh_terms: D017541:Aneurysm, False / Q000000981:diagnostic imaging / Q000209:etiology* / Q000628:therapy*; D017115:Catheter Ablation / Q000009:adverse effects* / Q000379:methods; D004621:Embolization, Therapeutic / Q000379:methods*; D005500:Follow-Up Studies; D006390:Hemangioendothelioma / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D006801:Humans; D008175:Lung Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D008297:Male; D008875:Middle Aged; D011013:Pneumonectomy / Q000379:methods; D011651:Pulmonary Artery / Q000000981:diagnostic imaging / Q000293:injuries*; D011856:Radiographic Image Enhancement; D018570:Risk Assessment; D020775:Thoracic Surgery, Video-Assisted / Q000379:methods; D014057:Tomography, X-Ray Computed / Q000379:methods; D016896:Treatment Outcome