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Radiologic, histopathologic, and genomic findings of case II. (A) A cavitary nodule appeared in the left lower lobe 4 years after radiotherapy for pharyngeal cancer. (B, C) Histopathology of the (B) pharyngeal cancer and (C) pulmonary nodule. Each scale bar indicates 50 μm. (D) Heatmap of the gene mutations in the two lung tumors. The mutation profiles of the two tumors were completely different.
