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肺芽腫は比較的まれな疾患である.われわれは,肺芽腫の1例を経験したので報告する.
A 81-year-old man consulted our hospital because of an abnormal shadow on a chest radiography in the right lower field. Computed tomography of the chest showed a mass shadow measuring 41 mm in diameter in the lower lobe of the right lung. There was no lymph node swelling in the hilum or mediastinum. A diagnosis of the lung cancer was suspected and the patient underwent right lower lobectomy with standard nodal dissection. Microscopically, the tumor revealed the epithelial component mimicking fetal lung tissue and proliferative mesenchymal component consisting of immature and heteromorphic nuclear cells as well. The final diagnosis was pulmonary blastoma classified as pathological stage IIB. He was not scheduled for adjuvant chemotherapy due to his older age.
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