Laboratory findings included a normal white blood cell count, mild microcytic anemia, elevated C-reactive protein (CRP) at 8.3 mg/dL (normal: 0.0–0.8 mg/dL), and elevated fecal calprotectin at > 1250 μg/g (normal ≤ 49 μg/g). This evidence concerns the gene CRP and microcytic anemia.