Table 1.

pTNM Pathologic Classification

Stage I	T1*	N0	M0
Stage II	T2†	N0	M0
	T1	N1‡	M0
Stage III	T2	N1	M0
	T3§	N0, N1	M0
Stage IVA	T4∥	Any N	M0
Stage IVB	Any T	Any N	M1¶

^*T1: solitary, ≤ 2 cm, without vascular invasion.

^†T2: solitary, ≤ 2 cm, with vascular invasion. Multiple, one lobe, ≤ 2 cm, without vascular invasion. Solitary, > 2 cm, without vascular invasion.

^‡N1: regional.

^§T3: solitary, > 2 cm, with vascular invasion. Multiple, one lobe, > 2 cm, with or without vascular invasion.

^∥T4: Multiple, more than one lobe. Invasion of major branch of portal or hepatic veins.

^¶M1: Distant metastasis.