cSCC	cutaneous squamous cell carcinoma
BCC	basal cell carcinoma
RT	radiation therapy
HNSCC	head and neck squamous cell carcinoma
IT	immunotherapy
DSS	disease-specific survival
LACSCC	locally advanced cutaneous squamous cell carcinoma
NCCN	National Comprehensive Cancer Network
DSS	disease-specific survival
DFS	disease-free survival
PFS	progression-free survival
OS	overall survival
CR	complete response
PR	partial response
SD	stable disease
3D-CRT	3-dimensional conformal radiotherapy
IMRT	intensity-modulated radiotherapy
SBRT	stereotactic body radiotherapy
END	elective neck dissection
ENI	elective neck irradiation
EGFR	epidermal growth factor
PD-1	programmed cell death protein 1
PD-L1	programmed death-ligand 1
ICI	immune checkpoint inhibitors
FDA	food and drug administration
BED	biological effective dose
Pt	platinum-based chemotherapy
Cx	cetuximab
CRT	chemoradiotherapy
PET	positron emission tomography
RECIST	response evaluation criteria in solid tumors
PERCIST	positron emission tomography (PET) response criteria in solid tumors