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Fig. 1 | BMC Cancer

Fig. 1

From: Concordance between PIK3CA mutations in endoscopic biopsy and surgically resected specimens of esophageal squamous cell carcinoma

Fig. 1

Photomicrographs of a case harboring a PIK3CA mutation in both types of specimens (H1047R; Case No. 66). Paired endoscopic biopsy and surgically resected specimens show the same mutation. a The entire biopsy was manually microdissected (scale bar: 1 mm). b The tumor area in the surgically resected specimen was marked (indicated by the solid line) and manually microdissected (scale bar: 2 mm). High-power views of each specimen are shown in the right panels (scale bar: 100 μm)

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