Table 1 Clinical and 18F-FDG PET/CT image parameter comparisons between invasion thymoma and anterior mediatinal lymphoma patients
Histopathologic Diagnosis | Invasive TETs (n = 61, mean \(\varvec{\pm }\) SD) | Anterior mediatinal lymphomas (n = 72, mean \(\varvec{\pm }\) SD) | \(\varvec{X}^{\varvec{2}}\varvec{/t/Z}\) | p value |
|---|---|---|---|---|
Age (years, mean ± SD) | 55.84 ± 11.43 | 28.97 ± 10.37 | -14.20 | <0.001 |
Gender | ||||
     Male | 33 | 40 | 0.028 | 0.866 |
     Female | 28 | 32 | ||
Location | ||||
     No offset | 37 | 65 | 16.21 | <0.001 |
     Offset | 24 | 7 | ||
Tumor longest diameter (cm) | 6.72 ± 2.99 | 7.99 ± 1.83 | 3.02 | 0.003 |
SUVmax | 7.63 ± 4.58 | 15.68 ± 8.18 | 6.83 | <0.001 |
Tumor Border | ||||
     Blurred | 45 | 54 | 0.026 | 0.871 |
     Sharp | 16 | 18 | ||
Peripheral Vascular Structure | ||||
     Encompass | 9 | 25 | 6.919 | 0.009 |
     Infiltrate | 52 | 47 | ||
Calcification | ||||
     Yes | 18 | 0 | 24.571 | <0.001 |
     No | 43 | 72 | ||
Distant metastasis | ||||
     Yes | 33 | 26 | 5.137 | 0.023 |
     No | 27 | 46 |  | |
Metastatic below diaphragm lymph node | ||||
     Yes | 7 | 19 |  |  |
     No | 54 | 53 | 3.602 | 0.057 |
Splenic involvementa | ||||
     Yes | 0 | 21 |  |  |
     No | 61 | 51 | - | <0.001 |