TABLE 1.

General characteristics of patients included in this study.

Characteristics	No. of patients (%)
Sex
Male	28 (64)
Female	16 (36)
Median age, y	58 (range, 36–92 y)
T classification
T1	13 (30)
T2	13 (30)
T3	6 (14)
T4	9 (20)
N classification
Node negative	15 (34)
Node positive	27 (61)
N1	12 (27)
N2a	1 (2)
N2b	13 (30)
N2c	1 (2)
Presence of ECE	10 (23)
Presence of PNI	24 (55)
Margins
Positive	4 (9)
Close (<5 mm)	17 (39)
Negative	21 (48)

Abbreviations: ECE, extracapsular extension; PNI, perineural invasion.