Multimodality imaging of pulmonary artery aneurysms due to giant cell arteritis: a case series.

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Pulmonary artery aneurysms (PAAs) are rare, but important vascular phenomena with nonspecific signs and symptoms. While some patients remain asymptomatic, others manifest with serious symptoms such as chest pain, dyspnea, or hemoptysis. Often diagnosed incidentally, PAAs have various underlying etiologies, including congenital, acquired, and idiopathic. Giant cell arteritis (GCA) is a very rare cause of PAAs, with limited reported cases in the literature. This case series will review the clinical presentation, multimodality imaging, and management of four patients with isolated PAA due to GCA.