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. 2012 Aug 30;2012:492578. doi: 10.5402/2012/492578

Figure 2.

Figure 2

Example of wild-type PIK3CA detection from a CT-guided biopsy sample (Case 3).(a) Section from a CT-guided biopsy sample stained with hematoxylin and eosin. The bar shows a distance of 50 μm. (b) Closeup of the same section showing the presence of breast cancer cells (indicated by red arrows). (c) and (d) High-resolution melting shows the absence of mutations in either exon 9 (c) or exon 20 (d) Blue lines, T47D DNA; red lines, MCF7 DNA; green lines, sample DNA. Absence of mutations was confirmed by sequencing.