Case | Type of M-protein | Serum M-protein(g/L) | Serum β2-MG(g/l) | Plasma cells in BM | Extent evaluated by conventional imaging | Post-PET/CT changes |
---|---|---|---|---|---|---|
1 | NEG | NEG | 1.76 | NEG | Single primary EMP in left nasal cavity | No |
2 | NEG | NEG | 1.90 | NEG | Single primary EMP in nasopharynx with left cervical LN metastasis | Detected more lymph node metastasis(bilateral cervical LN metastasis, n = 2) |
3 | NEG | NEG | 1.50 | NEG | Single EMP in nasopharynx | No |
4 | NEG | NEG | 1.88 | NEG | Single EMP in left nasal cavity | No |
5 | IgA | 16.4↑ | 2.25 | 2.5% | Primary EMP of LN in left supraclavicular area | Detected more lymph node involvement in mediastinal area(n = 1) |
6 | NEG | NEG | 1.82 | NEG | Single primary EMP in right lung | No |
7 | NEG | NEG | 1.78 | NEG | Single primary EMP in left nasal cavity | No |
8 | NEG | NEG | 1.64 | NEG | Single primary EMP in left nasal cavity | Bone involvement (left pubis, n = 1) was identified |
9 | IgG | 22.00↑ | 2.55↑ | NEG | Single primary EMP in left maxillary sinus | Bone involvement (right iliac bone, n = 1) was identified |
10 | NEG | NEG | 1.72 | NEG | Single EMP in nasopharynx | No |
11 | NEG | NEG | 1.98 | NEG | Single primary EMP in right nasal cavity | No |
12 | IgG | 16.3↑ | 1.43 | 0.4% | Single primary EMP in right thyroid | A second primary EMP (left breast, n = 1) |
13 | NEG | NEG | 1.66 | NEG | Single primary EMP of small intestine with locoregional LN metastasis | Detected more lymph node metastasis (n = 2) |
14 | NEG | NEG | 1.66 | NEG | Single primary EMP in left oropharynx | No |
15 | NEG | NEG | 1.70 | NEG | primary EMP of LN in retroperitoneal lymph nodes | No |
16 | NEG | NEG | 1.78 | NEG | primary EMP of LN in left hilar | No |
17 | NEG | NEG | 1.82 | NEG | Single primary EMP in right lung | No |
18 | NEG | NEG | 2.04 | NEG | Single primary EMP in right maxillary sinus | Multiple EMP (right lung, right hilar, gastric body, n = 3) and lymph node involvement (n = 1) were identified |
19 | IgG | 26.1↑ | 1.74 | NEG | Single primary EMP in right lung | No |
20 | IgG | 23.00↑ | 3.26↑ | NEG | Single primary EMP in left inguinal, bilateral iliac area | Detected more lymph node involvement in retroperitoneal area (n = 6) |
21 | NEG | NEG | 2.27 | NEG | Surgical excision of single primary EMP in right salivary gland | No |