PTK2 and neoplasm: Consistent with western blot data, p‐FAK‐Y397staining intensity was significantly higher in both USC tumor samples (USC tumor samples: 99.58 ± 11.14 vs. EEC tumor samples: 65.14 ± 7.87; P = 0.03) and aspirates (USC tumor aspirates: 156.66 ± 11.93 vs. EEC tumor aspirates: 114.75 ± 7.51; P = 0.006), compared to their EEC counterparts (Fig. 2E).