Suspicious Segmental Pulmonary Artery Aneurysm With Nontuberculous Mycobacterial Infection: A Report of a Rare Case

Division

West Florida

Hospital

Blake Medical Center

Document Type

Case Report

Publication Date

5-29-2026

Keywords

acute hemoptysis, cardiology research, infectious disease medicine, mycobacterial infections, mycobacterium abscessus complex, pulmonary aneurysm

Disciplines

Bacterial Infections and Mycoses | Internal Medicine | Medicine and Health Sciences | Respiratory Tract Diseases

Abstract

Nontuberculous mycobacteria (NTM) are well-established pulmonary pathogens across all demographics; conversely, pulmonary artery aneurysms (PAAs) represent rare and potentially life-threatening vascular complications. The pathophysiological association between chronic NTM infection and the development of PAAs remains largely underexplored. A 69-year-old man with a history of untreated NTM infection presented to our facility with a chief complaint of hemoptysis. Initial diagnostic imaging suggested the presence of a PAA in a branch of the pulmonary artery. Consequently, a multidisciplinary consultation ensued to determine the true structural classification of the lesion, weighing a PAA against an acquired, infection-mediated pseudoaneurysm. Subsequent bronchoscopy and culture analysis of the bronchial lavage fluid grew

Publisher or Conference

Cureus

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