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. 2024 Oct 4;10:87. doi: 10.1038/s41523-024-00693-9

Fig. 4. Mutational mapping and phylogenetic tree analysis following bilateral risk-reducing mastectomy.

Fig. 4

a Case 1 is an analysis of bilateral risk-reducing mastectomy in a 45-year-old woman with BRCA1 p.Q1281*. She has a history of right breast cancer and underwent partial mastectomy followed by adjuvant chemoradiotherapy. In the right breast, 14 specimens from 53 samples had mutations in PIK3CA, ARHGAP35, CDH1, and NF1, and the clonality score was 2.42. Phylogenetic tree analysis of 8 samples (green highlighted) using WES data are shown. b Overall 6 of 58 samples in the left breast had mutations in PIK3CA, and the clonality score was 0.99. Phylogenetic tree analysis of 3 samples (green highlighted) using WES data are shown. c The representative microscopic images of breast tissue with hematoxylin and eosin (HE) staining. The left picture shows sclerosing adenosis. Magnification, ×100. Scale bars represent 200 μm. Lt left, Rt right, GL germline.