Hemophagocytic plasma cells and abnormal karyotyping result. (A) Microscopic examination of bone marrow (BM) showing large, bizarre plasma cells with characteristic hemophagocytic features mostly with mature erythrocytes and platelets (Wright-Giemsa staining, ×1,000). (B) Conventional BM chromosome analysis result showing 45,X,−X,+1,dic(1;8)(p13;p23),del(6)(q22q25), del(8)(p21) karyotype.