Fig. 1
From: Non-producer multiple myeloma presenting with acute hyperammonemic encephalopathy: case report
Absence of monoclonal band by (a) serum immunofixation electrophoresis, including antisera to (b) IgD and IgE. Bone marrow biopsy at the time of disease progression showing sheets of pleomorphic plasma cells by (c) hematoxylin and eosin stain at 20x; (d) highlighted by CD138 and (e) lacking cytoplasmic immunoglobulin expression by dual immunohistochemical staining of kappa and lambda with (f) control for comparison. Abbreviation: ELP, protein electrophoresis