From: Predictors of distant metastasis in parotid acinic cell carcinoma
Characteristics | N (%) |
---|---|
Age | |
< 55 | 74 (51.4%) |
≥ 55 | 70 (48.6%) |
Sex | |
Male | 61 (42.3%) |
Female | 83 (57.6%) |
Tumor stage | |
T1 | 42 (29.2%) |
T2 | 61 (42.4%) |
T3 | 27 (18.8%) |
T4 | 14 (9.7%) |
Neck node stagea | |
N0 | 46 (55.4%) |
N+ | 37 (44.6%) |
Margin | |
Clear | 140 (97.2%) |
Positive | 4 (2.8%) |
Tumour site | |
Superficial | 131 (91.0%) |
Deep | 13 (9.0%) |
Perineural invasion | 27 (18.8%) |
Lymphovascular invasion | 21 (14.6%) |
High grade transformation | 12 (8.3%) |
IPN metastasisb | 34 (31.8%) |