Lymph Node Metastases of Medullary Thyroid Cancer: Role of Calcitonin in the Washout Fluid of Fine-Needle Aspiration

Table 1

Patients characteristics according to FNA-CT measurement.

		FNA-CT measurements N = 69 (42 patients)
		Detectable N = 23 (10 patients)	Undetectable N = 46 (32 patients)
Gender	Female	4	15	NSS
	Male	6	17
Age (years)		63.2 ± 16.7	57.9 ± 14.2	NSS
Personal history of MTC		7	6	NSS
FNA-CT levels (pg/mL)		2014 (490 – 15111)	<2 (0)	<0.001
Serum CT (pg/mL)		635 (277 – 2524)	1 (1 – 277)	0.016
LN diameter (mm)		19.7 ± 10.7	16.2 ± 6.1	0.014

FNA-CT levels and serum CT levels expressed as median (interquartile range); age and LN diameter expressed as mean ± standard deviation; NSS = no statistical significance.