The presence of abnormal monoclonal proteins, the M band, is a frequent characteristic feature of plasma cell dyscrasias and is usually detected as a discrete band in the γ or β region in serum or urine protein electrophoresis.
The presence of abnormal monoclonal proteins, the M band, is a frequent characteristic feature of plasma cell dyscrasias and is usually detected as a discrete band in the γ or β region in serum or urine protein electrophoresis.