Efficacy of whole lung tomography in diagnosing metastases from solid tumors in children.

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Abstract
Whole lung frontal tomography is compared with frontal chest radiography in the diagnosis of pulmonary metastasis in children with cancer. Of 79 patients studied 65 had a total of 195 routine tomograms. In only 2.7% of studies did tomography yield new information and in only 1% was an additional lesion visualized. In 27 patients tomography was performed after an abnormality was seen on the chest radiograph. New information was obtained in 15 (32%) of those 47 studies, additional nodules were identified on 6 occasions (4 metastatic, 2 inflammatory) but only once was treatment altered. In 1 study tomography localized a nodule seen only on a lateral chest radiograph, and in 8 studies it excluded metastasis following an abnormal frontal chest radiograph.

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