Bone Marrow.
Microscopic analysis of the bone marrows generally showed replacement of red hematopoietic bone marrow with yellow adipocyte-rich marrow in group 1 patients (Figure 6B1). Megakaryocytes hyperplasia (Figure 6B2) was seen in 2 patients of group 2 (Table 3). Numerous macrophages (CD68+) were seen and they displayed features of hemophagocytosis (Figure 6C1 and 6C2).