Pure red cell aplasia caused by pegylated interferon-α-2a plus ribavirin in the treatment of chronic hepatitis C

Figure 1 Hemoglobin level and reticulocyte count over time. RBC: Red blood cells.

Figure 2 Photomicrograph of bone marrow biopsy showing overall hypocellularity of 10% (HE, x 40).

Figure 3 Photomicrograph of higher magnification showing normal maturation of myeloid precursors and absence of erythroid precursors in this field (HE, x 100).