01 January 2015 by John Ryan, Thenappan Thenappan, Stuart Rich, Stephen Archer

WHO Group 4 - chronic thromboembolic pulmonary hypertension

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Ryan JJ,Thenappan T,Luo N,Ha T,Patel AR,Rich S,Archer SL.The WHO classification of pulmonary hypertension: A case-based imaging compendium.Pulmonary circulation. 2012 ;2:107-21.

WHO Group 4 - chronic thromboembolic pulmonary hypertension. (A) Twelve-lead electrocardiogram showing S1Q3T3 suggestive of right ventricular strain, and right axis deviation. (B, C) Chest X-ray: Massively enlarged central pulmonary arteries. (D-E) Ventilation perfusion scan revealing perfusion defect in left lower lobe (F-H) Computed tomographic pulmonary angiogram demonstrating massively dilated main pulmonary artery, eccentric mural thrombus in the right main pulmonary artery and its proximal branches (dashed white arrow).

 

Additional keywords: angiogram,electrocardiogram,X-ray,imaging,group 4

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