PMC4895064_01
3-year-old boy with pulmonary embolism. A, Perfusion scan demonstrates no significant perfusion to the right lung. B, Ventilation scan demonstrates normal ventilation to both lungs. VQ scan images are presented courtesy of the Department of Radiology at Alder Hey Childrens Hospital, Liverpool, United Kingdom.
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Ventilation/perfusion (V/Q) scan showed no perfusion to the right lung, but normal ventilation to both lungs (Fig. 1).