Table 1 Comparison of clinical and radiological data between the YST and non-YST cohorts
From: Diagnostic features of pediatric testicular yolk sac tumors: a 13-year retrospective analysis
Factors | YST (n = 40) | non-YST (n = 40) | p -Value |
|---|---|---|---|
Age (year) a | 1.47 ± 1.05 | 4.68 ± 4.01 | 0.000 |
AFP (ng/ml) a | 4403.43 ± 6588.70 | 24.24 ± 82.67 | 0.000 |
Size (mm) a | 29.95 ± 11.41 | 18.70 ± 8.37 | 0.000 |
Location n (%) b | 0.653 | ||
Left | 21 (53.5) | 23 (57.5) | |
Right | 19 (47.5) | 17 (42.5) | |
Shape n (%) b | 0.001 | ||
Oval | 40 (100) | 31 (77.5) | |
Irregular | 0 (0) | 9 (22.5) | |
Signal intensity n (%) b | 0.000 | ||
Predominantly solid | 38 (95) | 4 (10) | |
Solid-cystic | 2 (5) | 20 (50) | |
Predominantly cystic | 0 (0) | 16 (40) | |
Calcification n (%) b | 0 (0) | 12 (30) | 0.000 |
Fat n (%) b | 0 (0) | 13 (32.5) | 0.000 |
Hemorrhage n (%) b | 1 (2.5) | 1 (2.5) | 1.000 |
Necrosis n (%) b | 28 (70) | 14 (35) | 0.002 |
Enhance degree n (%) b | 0.000 | ||
Mild | 0 (0) | 20 (50) | |
Moderate | 0 (0) | 9 (22.5) | |
Marked | 40 (100) | 11 (27.5) | |
Bright-dot sign n (%) b | 23 (57.5) | 0 (0) | 0.000 |
Thickened spermatic cord n (%) b | 38 (95) | 13 (32.5) | 0.000 |
Hydrocele n (%) b | 31 (77.5) | 11 (27.5) | 0.000 |