Computed tomographic colonography is highly specific, but the range of reported sensitivities is wide. Patient or scanner characteristics do not fully account for this variability, but collimation, type of scanner, and mode of imaging explain some of the discrepancy. This heterogeneity raises concerns about consistency of performance and about technical variability. These issues must be resolved before CT colonography can be advocated for generalized screening for colorectal cancer.
Fluticasone and esomeprazole provide a similar histological response for esophageal eosinophilia. With regard to clinical response, esomeprazole was superior to fluticasone, particularly in patients with established GERD.
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