Table 1 Laboratory and paraclinical features of a male case of extramedullary relapse of Immunoglobulin A-kappa myeloma manifesting as isolated plasmacytoma of the pleura
Test | Value | Adult reference range |
|---|---|---|
Immunofixation electrophoresis | ||
 IgG | 10.33 | 6.58–18.37 |
 IgA | 33.33 | 0.71–3.60 |
 IgM | 0.56 | 0.40–2.63 |
Serum protein electrophoresis | ||
 Albumin; g/dl (%) | 4.34 (65.7%) | 4.02–4.76 (55.8–66.1%) |
 Alpha 1; g/dl (%) | 0.21 (3.2%) | 0.21–0.35 (2.9–4.9%) |
 Alpha 2; g/dl (%) | 0.53 (8.0%) | 0.51–0.85 (7.1–11.8%) |
 Beta 1; g/dl (%) | 0.36 (5.5%) | 0.34–0.52 (4.7–7.2%) |
 Beta 2; g/dl (%) | 0.28 (4.2%) | 0.23–0.47 (3.2–6.5%) |
 Gamma; g/dl | 0.88 (13.4%) | 0.80–1.35 (11.1–18.8%) |
 A/G ratio | 1.92 |  |
 Total protein; g/dl | 6.6 | 6.6–8.3 |
Urine biochemistry | ||
 Urine microalbumin (random); mg/L | 23 |  < 20 |
 Urine creatinine (random); mg/L | 151 | 25–400 |
 Microalbumin/creatinine ratio | 0.15 |  |
 Urine analysis |  |  |
 Albumin | 1+  | – |
 Blood | 1+  | – |
 Protein | 1+  | – |
Other | ||
 ESR; mm/hour | 18 | 0—15 |
Immunohistochemistry bone marrow | ||
 CD138 | Positive in sheet of plasma cells |  |
 CD19 | Positive in benign lymphoid nodule |  |
 CD20 | Positive in benign lymphoid nodule |  |
 Kappa | Positive |  |
 Lambda | Negative |  |