Fig. 3.
Cumulative survival of patients associated with the PIK3CA gene status. The red curves represent patients with mutation and the blue curves represent wild-type patients. a CM/ESCC – chagasic megaesophagus associated with squamous cell carcinoma of the esophagus; b ESCC – squamous cell carcinoma of the esophagus; MUT – mutant; WT – wild-type