case_images: PMC10771918_01
case_images: Bone marrow histology in hyperhemolysis syndrome. Hematoxylin and eosin stains of bone marrow core biopsies show increased erythroid-predominant hematopoiesis at (a) 4x and (b) 40x magnifications.
case_images: CRIM2023-5290115.001.jpg
case_images: PMC10771918_01_CRIM2023-5290115.001.jpg
case_images: fig1
case_images: This revealed a hypercellular marrow (80%) with erythroid-predominant trilineage hematopoiesis and erythroid hyperplasia, with minimal hemophagocytosis present (Figures 1(a) and 1(b)).
case_images: Trends of hemoglobin levels throughout her hospitalization and on discharge.
case_images: CRIM2023-5290115.002.jpg
case_images: PMC10771918_01_CRIM2023-5290115.002.jpg
case_images: fig2
case_images: Importantly, her Hgb continued to drop to below pretransfusion levels several times following each pRBC transfusion (Figure 2).