CTICasesCombined CTEPH and PAH
Imaging findings
CT angiography shows mosaic lung perfusion and chronic, eccentric thrombi in the distal segmental pulmonary arteries. There is also a perivascular ground-glass blush and micro-aneurysms in the upper lobes, typical of idiopathic PAH.
Key takeaways
Some patients present with overlapping features of chronic thromboembolic pulmonary hypertension (CTEPH) and pulmonary arterial hypertension (PAH). This combined phenotype is characterized by distal thromboembolic disease and a co-existing vasculopathy, carrying a higher surgical risk.
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