| Studies | Year | Total FNA | Sensitivity (%) | Specificity (%) | Accuracy (%) | PPV (%) | NPV (%) |
| Present study | 2020 | 57 | 100 | 97.9 | 98.1 | 83.7 | 100 |
| Ronchi et al. [8] | 2019 | 34 | 92 | 86 | - | - | - |
| Altin et al. [5] | 2018 | 194 | 69 | 89.6 | 86.5 | 54.1 | 94.2 |
| Marzouki et al. [1] | 2017 | 42 | 50 | 100 | 92.1 | 100 | 91.4 |
| Santigo et al. [9] | 2016 | 88 | 46 | 100 | 91 | 100 | 90 |
| Rezvani et al. [6] | 2015 | 200 | 53 | 93 | 82 | 72 | 84 |
| Mallon et al. [10] | 2013 | 201 | 52 | 98 | 92 | 78 | 93 |
| Nugansangiam et al. [13] | 2012 | 290 | 81.3 | 99.1 | 97 | 92.9 | 97.5 |
| Ali et al. [14] | 2011 | 129 | 84 | 98 | 94 | 93 | 95 |
| Stramandnoli et al. [3] | 2009 | 106 | 68.2 | 87.7 | 82.3 | 68.2 | 87.7 |
| Cohen et al. [15] | 2004 | 169 | 73 | 87 | 80 | 84 | 77 |