case_images: PMC7646409_01
case_images: Histopathologic stains from the pulmonary biopsy. (A) hematoxylin and eosin. (B) CK5/6 (C) CK7. (D) thyroid transcription factor-1. (E) Naspin A. (F) P63. (G) P40. (H) Ki67. (x400). cytokeratin (CK).
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case_images: The immunohistochemistry staining results of pulmonary biopsy were CK5/6-positive, CK7-positive, thyroid transcription factor-1-positive, Naspin A-negative, P63-negative, P40-negative and Ki-67 positive index 30% (Figure 1).
case_images: Next-generation sequencing findings of MYH9-RET fusion. (A) The Integrative Genomics Viewer snapshot of MYH9-RET. (B) Schematic representation of the MYH9-RET fusion protein domain structure.
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case_images: EGFR exon19 p. E746_A750del, EGFR amplification as well as a novel MYH9 (exon41)-RET (exon12) fusion (Figure 2) were identified, without EGFR exon20 p.T790M.
case_images: Computed tomography (CT) scan detecting and treatment course. (A-E) Chest CT scans showed the effects of different types of therapy of the patient's lung tumor. (F) Time line of the patient accepting treatments and duration of every treatment.
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case_images: The findings of gene sequencing during treatment were given in Table 1 and time line of the treatments and the effects of different types of therapy were presented in Figure 3.