case_images: PMC10876019_01
case_images: Hypercellular bone marrow biopsy, rich in lobulated megakaryocytes (hematoxylin and eosin, x200).
case_images: cureus-0016-00000052622-i01.jpg
case_images: PMC10876019_01_cureus-0016-00000052622-i01.jpg
case_images: FIG1
case_images: The bone marrow histological examination demonstrated hypercellularity, marked by an increased count of enlarged, mature, and hyperlobulated megakaryocytes (Figure 1).
case_images: Positive immunostaining of plasma cells by CD138.
case_images: cureus-0016-00000052622-i02.jpg
case_images: PMC10876019_01_cureus-0016-00000052622-i02.jpg
case_images: FIG2
case_images: Immunostaining using the CD138 antibody revealed infiltration by plasma cells, estimated at approximately 30% (Figure 2).
case_images: Dynamics of platelet counts, hemoglobin, monoclonal protein, and free light chain lambda during the patient management.
case_images: cureus-0016-00000052622-i03.jpg
case_images: PMC10876019_01_cureus-0016-00000052622-i03.jpg
case_images: FIG3
case_images: The patient remained free of myeloma-defining events during one year of follow-up (Figure 3).