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Summary of results of comparison of MASS-FIX/MALDI and FLC-Modified SIFE for detection of monoclonal light chains.
| No. of specimens with monoclonal Ig | 43 |
| Positive for monoclonal LC by both methods | 18 |
| Positive with FLC-Modified SIFE only | 24 |
| Positive with MASS-FIX/MALDI only | 1 |
| No. of specimens without monoclonal Ig | 4 |
| Negative by both methods | 4 |
