Table 4:

Factor analysis related to the FNA misdiagnosis of MTCa

FNA Diagnosis (n = 74)FNA Misdiagnosis (n = 95)bP Value
Age (yr).914
    Mean49.0 ± 14.249.2 ± 13.4
    Range18–8117–81
Sex.786
    Female49 (66.2)61 (64.2)
    Male25 (33.8)34 (35.8)
Genetics.869
    Hereditary1115
    Sporadic6380
Size.258
    <10 mm1425
    ≥10 mm6070
Serum calcitonin.034
    <100 pg/mL1731
    ≥100 pg/mL5446

  • ↵a Data are the number of nodules, with percentages in parentheses.

  • ↵b FNA misdiagnosis was defined as any cytologic diagnosis except MTC.