Chronic thromboembolic pulmonary hypertension (CTEPH) is the only potentially curable form of pulmonary hypertension, but is currently underrecognized. [1, 2] CTEPH is a rare complication of acute pulmonary embolism (PE) [3], with increasing evidence showing that acute PE may be accompanied by acute-on-chronic thromboembolic disease leading to diagnostic misclassification. A French study showed that patients ultimately diagnosed with CTEPH had multiple concomitant signs of CTEPH at computed tomography pulmonary angiography (CTPA) and echocardiography at the time of a preceding PE.
