Pulmonary blastoma: radiologic findings in five patients
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Updated: Aug 25, 2026
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Published on: July 19, 2024
Hyun Ju Lee1, Jin Mo Goo, Kyoung Won Kim
1Department of Radiology and the Institute of Radiation Medicine, Seoul National University College of Medicine, SNUMRC, 28 Yongon-dong, Chongno-gu, Seoul 110-744, Republic of Korea.
Purpose:
To determine the radiologic findings of pulmonary blastoma on chest radiograph and CT.
Materials And Methods:
Chest radiographs and CT scans of five patients with pathologically proven pulmonary blastoma were retrospectively evaluated and radiologic findings were correlated with histopathologic findings.
Results:
On chest radiograph, the pulmonary blastoma manifested as a solitary parenchymal mass (n = 2), a solitary parenchymal nodule (n = 1), hilar bulging with fingerlike parenchymal opacities (n = 1), or opacification of hemithorax (n = 1). On CT, the pulmonary blastoma manifested as a solitary parenchymal mass (n = 2), a solitary parenchymal nodule (n = 1), an endobronchial mass with postobstructive pneumonitis (n = 1), or a parenchymal mass with multiple subpleural masses and pleural effusion (n = 1).
Conclusion:
Pulmonary blastomas most commonly manifested as a solitary parenchymal mass on chest radiograph and CT. These radiologic features are nonspecific and many primary or metastatic tumors of the lung could be included in differential diagnosis.
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