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Uptodate Reference Title
Ventilation perfusion scanning findings of chronic thromboembolic pulmonary hypertension
Ventilation perfusion scanning findings of chronic thromboembolic pulmonary hypertension
Representative ventilation/perfusion (V/Q) scan in a patient with chronic thromboembolic pulmonary hypertension. Ventilation scan is normal (panels A-D). Multiple mismatched, segmental perfusion defects are present involving the anterior basal segment of the right lower lobe and the entirety of the left lower lobe and lingula (arrows).