Pulmonary artery pseudoaneurysm refers to a pseudoaneurysm arising from the pulmonary arteries.
Unlike a true aneurysm it does not involve all three layers of the the arterial wall.
They can arise from a number of causes including infection, associated neoplasms and trauma.
They may a strong predilection for the peripheral pulmonary arteries with most located in segmental and subsegmental pulmonary arteries 1.
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