PMC5676417_01
Bone marrow aspiration for case one showing macrophage activation syndrome (MAS).
CRIRH2017-5304180.001.jpg
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fig1
Ultrasound revealed a moderate hepatosplenomegaly, and bone marrow aspiration revealed hyperactivity with some morphologically benign macrophages with an evidence of hemophagocytosis (Figure 1()).
PMC5676417_02
Bone marrow aspiration for case two showing macrophage activation syndrome (MAS).
CRIRH2017-5304180.002.jpg
PMC5676417_02_CRIRH2017-5304180.002.jpg
fig2
Bone marrow showed a moderate decrease in cellularity, with 60% of the myeloid cells shifted to the left (less differentiated) with features of phagocytosis which led to the diagnosis of MAS (Figure 2()).