Table 2.

Treatment variables among patients with cLN(-) MCC by primary anatomic site

	HN (n=42)		NHN (n=38)
Surgical Strategy	n	%	n	%	p-value
Wide local excision	34	81%	38	100%	0.006
Surgical nodal evaluation
SLNB	26	62%	38	100%	<0.001
SLN Positive (among SLNBs)	11	42%	15	39%	0.99
CLND (among +SLNs)	0	0%	1	7%	0.58
Radiation Therapy
	n=34		n=38
Adjuvant primary RT (WLE)	33	97%	38	100%	0.47
≤50 Gy	10	30%	35	92%	<0.001
51–56 Gy	13	40%	2	5%
>56 Gy	10	30%	1	3%
	n=8		n=0
Definitive primary RT (no WLE)	8	100%	0	0%
< 60 Gy	3	37%
≥ 60 Gy	5	63%
	n=11		n=14
Adjuvant nodal RT (for +SLNB, no CLND)	11	100%	9	64%	0.024
50 Gy	4	36%	7	78%	0.092
> 50 Gy	7	64%	2	22%
	n= 31		n=23
Elective nodal RT (no nodal eval or -SLNB)	15	48%	0	0%
≤ 50 Gy	12	80%
51–59.4 Gy	2	13%
> 60 Gy	1	7%