Fig. 1From: Pulmonary arterial hypertension due to antiphospholipid syndrome initially mimicking chronic thromboembolic pulmonary hypertensionInitial and follow-up chest CT scans. The initial chest CT scan with contrast showed filling defects in right lower segmental pulmonary arteries (left panel, red arrow) and the follow-up CT scan performed 13 months after anticoagulation therapy showed complete resolution of filling defects of right lower segmental pulmonary arteries (right panel, yellow arrow)Back to article page