Figure 2: (a)(b) Bone marrow biopsy at day 28 of the first cycle of R-CHOP therapy revealed complete clearance of CD20 positive atypical large lymphoma cells and commencement of resolution of the hemophagocytosis ((a) H&E x200, (b)CD20 x200).
(c) Chromosomal analysis at day 28 of the first cycle of RCHOP therapy demonstrated 20 of the 20 analyzed cells showed normal karyotype 46XX and CR was attained.