CD40LG and anemia (phenotype): Laboratory tests revealed the following (value, normal range): slight anemia (13.2 g/dL, 13.3–16.9 g/dL), elevated segmented leukocyte level (74%, 38%–58%), low lymphocyte count (19%, 36%–47%) with normal white blood cell count (8,500/μL, 4,000–9,400/μL), elevated C-reactive protein level (3.8 mg/dL, <0.3 mg/dL), and high IgM level (1,524 mg/dL, 35–220 mg/dL).