Detection of early gastric cancer using hydro-stomach CT: Blinded vs unblinded analysis

Figure 2 Early gastric cancer in a 45-year-old woman. The size of tumor was 9.5 cm at the longest diameter and the tumor extended to submucosal layer. A: The gastroscopy shows a large ill-defined lesion with abnormal convergence of gastric folds in posterior wall of gastric mid body (arrowheads); B: The transverse computed tomography scan shows equivocal enhancement and thickening (arrowheads) in posterior wall of gastric mid body. Although one reviewer indicated this lesion on both blinded and unblinded analysis, the other did not find this lesion even on unblinded analysis.