Research Article
Preoperative RAS Mutational Analysis Is of Great Value in Predicting Follicular Variant of Papillary Thyroid Carcinoma
Table 2
Clinical and pathological characteristics of the 187 follicular variants of papillary thyroid carcinoma.
| Characteristics | Number of patients ( = 187) |
| Age, years | ≤45 | 108 | >45 | 79 |
| Gender | Female | 160 | Male | 27 |
| Multiplicity | Single | 142 | Multiple | 45 |
| Tumor size (cm) | ≤1 | 120 | | 41 | | 21 | >4 | 5 |
| Capsulation | Absent | 77 | Present | 110 |
| Extrathyroidal extension | Absent | 162 | Present | 25 |
| Resection margin | Clear | 182 | Involvement | 5 |
| Lymph node metastases | Absent | 104 | Present | 25 | Not evaluated | 58 |
| Distant metastases at diagnosis | Absent | 185 | Present | 2 |
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