December 2023
Authors:
Dr Ken-win To, Radiology fellow, Guys and St Thomas Hospital
History:
CTPA – likely occluded left pulmonary artery with collateral circulation
Images:
Figure 1: CT Pulmonary Angiogram in axial plane demonstrating non opacification of the left pulmonary artery.
Figure 2: CT Pulmonary Angiogram in axial plane demonstrating non opacification of the left pulmonary artery. Collateralisation of vessels around the left pulmonary artery. Also circumferential thickening of the ascending aorta, worse posteriorly.