ArticleCureus2026
Aortic Pseudoaneurysm Mimicking a Pulmonary Neoplasm in an 87-Year-Old Patient: The Challenge of the "Great Mimicker" in Emergency Medicine.
Article in Cureus, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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5 authors.
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Abstract
Acute aortic syndrome (AAS) is a cardiovascular emergency associated with high mortality and often presents a diagnostic challenge, particularly in geriatric patients. We report the case of an 87-year-old woman who presented with acute chest pain, elevated biomarkers (troponin T and D-dimer), and an incidental finding on computed tomography (CT) of a mass in the left pulmonary apex. Initially suspected to represent a lung neoplasm because of associated constitutional symptoms, multidisciplinary review and dedicated aortic imaging subsequently revealed a pseudoaneurysm arising from a penetrating aortic ulcer of the distal aortic arch. The patient was successfully treated with straightforward thoracic endovascular aortic repair (TEVAR), without the need for supra-aortic branch coverage or adjunctive revascularization procedures, as the lesion was located distal to the origin of the supra-aortic branches. This case highlights the importance of considering AAS in the differential diagnosis of mediastinal and pulmonary masses in elderly patients.
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