PMC8373510_01
Bone marrow biopsy, H & E stain, hypercellular marrow, and increased histiocytes, which show hemophagocytosis (arrows).
CRIPE2021-6567770.001.jpg
PMC8373510_01_CRIPE2021-6567770.001.jpg
fig1
A bone marrow biopsy was performed, which showed increased histiocytes with hemophagocytosis and was consistent with MAS (Figures 1 and 2).
Bone marrow biopsy, CD68 immunohistochemistry stain, increased histiocytes, and hemophagocytosis.
CRIPE2021-6567770.002.jpg
PMC8373510_01_CRIPE2021-6567770.002.jpg
fig2
A bone marrow biopsy was performed, which showed increased histiocytes with hemophagocytosis and was consistent with MAS (Figures 1 and 2).