Abstract
Background
Primary tumors of the pulmonary artery are rare and frequently misdiagnosed as thromboembolic disease. Benign chondroid tumors arising from this location are exceptionally uncommon.
Case Description
A 23-year-old man presented with exertional dyspnea and syncope. Imaging revealed a well-defined mass occupying the main pulmonary artery. Positron emission tomography/computed tomography showed no metabolic activity. The mass was completely excised under cardiopulmonary bypass. Histopathological examination demonstrated mature hyaline cartilage with low proliferative activity, consistent with a benign chondroid tumor. The postoperative course was uneventful, and no recurrence was observed at 12-month follow-up. This case highlights a rare benign etiology of pulmonary artery obstruction. Surgical resection remains the definitive diagnostic and therapeutic approach in selected patients with atypical intraluminal pulmonary artery masses.
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Supplementary Material
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