Abstract
We reported three children with uneven radiolucency in the both lungs on chest X-P. There was one with a granuloma in left main bronchus, one with a right pulmonary artery absence and the other with the Swyer-James-Macleod syndrome. The images of pulmonary ventilation-perfusion scintigraphy using Xe-133 showed a different pattern in the former two patients. In first patient with a granuloma, the images showed a decreased ventilation and perfusion distribution to the left lung with marked retention of gas on the later images. In second with PA absence, it showed a mild volume loss and a marked decreased perfusion distribution to the right lung. In third with Swyer-James-Macleod syndrome who examined only by perfusion scintigraphy using Tc-99m microspheres, it showed a decreased distribution to the left lung.
Pulmonary ventilation-perfusion scintigraphy seems to be benefit for diagnosis of children with uneven radiolucency in the both lungs on chest X-P.
