CTICasesChronic Thromboembolic Pulmonary Hypertension
Imaging findings
CT angiography shows severe vascular caliber discrepancies (asymmetric pulmonary vessels), webs, bands, and eccentric mural thrombus in the lobar and segmental branches, along with hypertrophied systemic bronchial collateral arteries. Post-surgical CT shows resolution of these findings following pulmonary thromboendarterectomy.
Key takeaways
Vascular caliber asymmetry and systemic bronchial artery hypertrophy are major CT features of chronic thromboembolic pulmonary hypertension (CTEPH). Unlike primary PAH, CTEPH is surgically treatable via thromboendarterectomy, which provides significant hemodynamic and functional recovery.
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