Clinicopathologic analysis of esophageal and cardiac cancers and survey of molecular expression on tissue arrays in Chaoshan littoral of China

Figure 1 The histogram of the constituent ratio for EC and CC in Chaoshan region.

Figure 2 A: Overview of Chaoshan esophageal carcinoma tissue array (tissue cores with a diameter of 1. 5 mm with 68 samples); B: Esophageal para-cancerous tissue and squamous carcinoma tissue (HE staining, original magnification: × 40).

Figure 3 Phosphor-EGFR (Tyr845) expression on esophageal squamous carcinoma tissue (A, B, C) and esophageal para-cancerous tissue (D) (Cell Signaling Technology kit, original magnification: × 40).

Figure 4 Erk1/Erk2 expression on normal esophageal squamous tissue (A, conventional tissue section, SP × 100) and esophageal squamous carcinoma tissue (B, C, D tissue arrays) (SP × 200).