Elevated Concentrations of SERPINE2/Protease Nexin-1 and Secretory Leukocyte Protease Inhibitor in the Serum of Patients with Papillary Thyroid Cancer

Table 2

Histopathological diagnosis and clinical staging of 36 PTC patients included in the study, recommended by the 2010 TNM system edition by the Union for International Cancer Control [12].

PTC variants; ( = number of patients)	Stage of PTC
	I	II	III	IVA
Conventional	7	3	4	0
Follicular variant	5	4	3	0
Tall cell	0	1	1	1
Columnar cell	0	0	1	1
Diffuse sclerosing	0	1	1	0
Clear cell	0	3	0	0