Bronchopulmonary sequestration associated with aspergilloma, with special reference to the finding of radionuclide venoangiography.

A case of intralobar bronchopulmonary sequestration associated with aspergilloma was reported. It was suggested by radionuclide venoangiography and aortic cineangiography. The diagnosis was confirmed by subsequent pathologic examination of the lobectomized lung tissue. The pulmonary perfusion scan with 99mTc-MAA showed a perfusion defect in the right lower lung field. Perfusion defect could also be traced in the same anatomical location in the pulmonary phase of radionuclide venoangiography with 99mTc-pertechnetate. However, the area of perfusion defect was visualized as hot area, when the injected radionuclide was pumped into the aorta after its first pass through the lung. The radionuclide venoangiography can efficiently detect abnormal systemic blood supply of the lung tissue. It can be an useful method for suggestive diagnosis of bronchopulmonary sequestration.