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Pulmonary artery pseudoaneurysm arising from a lung tumor
Susana Sanchez Padrones1, Rosa Lopez Lisbona, Antoni Rosell Gratacos
1Pulmonary Department and Laser Department, Bellvitge University Hospital, Barcelona, Spain; and Pulmonary Department, Clinica Colon Mar del Plata, Argentina.
A lung tumor caused a pulmonary artery pseudoaneurysm leading to severe bleeding. Embolization resolved the hemoptysis but caused lung tissue damage, highlighting a rare complication of this interventional procedure.
Area of Science:
- Interventional Radiology
- Pulmonary Medicine
- Thoracic Oncology
Background:
- Life-threatening hemoptysis in a patient with a history of smoking and alcohol abuse.
- Bronchoscopy revealed a tumor obstructing the right bronchus intermedious, complicated by massive bleeding during the procedure.
- Initial management involved bronchial artery embolization and diagnostic imaging.
Purpose of the Study:
- To identify the source of massive hemoptysis in a patient with a lung tumor.
- To describe the successful embolization of a pulmonary artery pseudoaneurysm.
- To report on the potential complications following pseudoaneurysm embolotherapy.
Main Methods:
- Selective aortic angiogram and bronchial artery coiling for acute bleeding control.
- Contrast-enhanced thoracic computed tomography (CT) to identify vascular abnormalities.
- Selective pulmonary artery angiogram and embolization of a 3.4-cm pseudoaneurysm.
Main Results:
- A right pulmonary artery pseudoaneurysm was identified as the source of hemoptysis.
- Successful embolization of the pseudoaneurysm led to resolution of hemoptysis.
- The patient developed parenchymal ischemia-infarct in the right lower lobe post-embolization.
Conclusions:
- Pulmonary artery pseudoaneurysms can develop secondary to lung tumors and present with massive hemoptysis.
- Embolotherapy is an effective treatment for pulmonary artery pseudoaneurysms causing hemoptysis.
- Ischemia and infarct are unusual but possible complications of pulmonary artery pseudoaneurysm embolization.
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