Table 4.

Patient characteristics and associated outcomes of patients with low-risk Stage IA MCC who experienced any type of recurrence

Pt	Age at Dx	Sex	Primary Subsite	Primary Size (cm)	Tumor Depth of Primary Tumor (mm)	LVI?	Initial Treatment	LR	Non-LR∗	Status
1¦	84	M	Cheek	0.4	0.80	Absent	Surgery	Yes	Yes†,‡	Dead§
2	76	M	Forehead	0.5	1.05	Absent	Surgery	Yes	No	Dead
3	59	F	Forehead	0.5	2.10	Absent	Surgery	Yes	No	Alive
4	58	M	Cheek	0.5	4.00	Absent	Surgery	Yes	No	Alive
5	80	M	Ear	0.8	Unknown	Present	Surgery	Yes	No	Alive
6	67	M	Cheek	0.5	Unknown	Absent	Surgery	Yes	No	Alive
7¶	71	F	Lip	0.8	1.00	Absent	Surgery	No	Yes†	Alive
8#	57	F	Cheek	0.7	Unknown	Unknown	Surgery	No	Yes†	Alive
9	82	M	Ear	0.1	Unknown	Unknown	Surgery + PORT	No	Yes‡	Dead§
10	73	M	Forehead	1	1.40	Absent	Surgery + PORT	No	Yes‡	Alive
11	49	M	Cheek	1	Unknown	Absent	Surgery + PORT	No	Yes†	Alive

DM, distant metastatic; Dx, diagnosis; F, female; LVI, lymphovascular invasion; LR, local recurrence; M, male; MCC, Merkel cell carcinoma; PORT, postoperative radiation therapy; Pt, patient; RR, regional recurrence.

^∗Non-local recurrence is defined as lymph node RR^† or DM recurrence^‡.

^§Death due to MCC.

^¦First recurrence was local. The RR and DM occurred at 244 and 260 days from the LR, respectively.

^¶RR occurred in neck level I, 3.45 years after diagnosis.

^#RR was discovered during first week of PORT.