Retrospective chart review of skin cancer presence in the wide excisions

Table 1 Patients characteristics

	BCC	SCC	Total patients
No. of cases	100	100	200
Sex
Male	62	43	105
Female	38	57	95
Male/female	1.63	0.75	1.111
Median age (range)	69 (42-92)	77 (45-95)	73 (42-95)2
Biopsy margins positive	100	100	200
Excision-cancer absent	49	64	1133

P value (BCC vs SCC):

¹P = 0.007;

²P = 0.003;

³P = 0.032. BCC: Basal cell carcinoma; SCC: Squamous cell carcinoma.

Table 2 Skin cancer subtype distribution n (%)

Subtype		No. of patients	Excision-cancer absent
BCC	Nodular	53	26 (49.1)
	Infiltrative	11	6 (54.5)
	Nodular and superficial	25	15 (60)
	Nodular and infiltrative	10	2 (20)
	Infiltrative and superficial	1	0 (0)
SCC	In situ	45	26 (57.8)
	Keratoacanthoma type	12	9 (75)
	Moderately-differentiated	4	3 (75)
	Well-differentiated	16	12 (75)
	Invasive	12	6 (50)
	Other types1	11	6 (54.5)

¹Include following complex subtypes, intraepidermal epithelioma pattern, in situ-intraepidermal epithelioma pattern, in situ and invasive, in situ- well differentiated, moderately to poor differentiated, in situ acantholytic and focally invasive, in situ and focally superficial invasive, keratinizing well differentiated, and unknown types. BCC: Basal cell carcinoma; SCC: Squamous cell carcinoma.

Table 3 Gender distribution between excision-cancer absent and excision-cancer present cases of basal cell carcinoma and squamous cell carcinoma n (%)

		M	F	Total	M/F	P value
BCC	Excision-cancer absent	33 (67.3)	16 (32.7)	49	2.06	0.2801
	Excision-cancer present	29 (56.9)	22 (43.1)	51	1.32
SCC	Excision-cancer absent	25 (39.7)	38 (60.3)	63	0.66	0.3821
	Excision-cancer present	18 (48.6)	19 (51.4)	37	0.95
Excision- cancer absent cases	BCC	33 (67.3)	16 (32.7)	49	2.06	0.0042
	SCC	25 (39.7)	38 (60.3)	63	0.66

P value:

¹In BCC or SCC cases, the percentage of male (female) patients in excision-cancer absent vs present groups;

²In excision-cancer absent cases, the percentage of male (female) patients in BCC vs SCC. BCC: Basal cell carcinoma; SCC: Squamous cell carcinoma; M: Male; F: Female.

Table 4 Age distribution between excision-cancer absent and excision-cancer present cases of basal cell carcinoma and squamous cell carcinoma

		Median age (range), yr	Averageage, yr	P Value
BCC	Excision-cancer absent	66 (45-92)	67	0.1911
	Excision-cancer present	72 (42-90)	70
SCC	Excision-cancer absent	76 (48-95)	74	0.5341
	Excision-cancer present	78 (45-91)	75
Excision- cancer absent	BCC	66 (45-92)	67	< 0.0012
	SCC	76 (48-95)	74

P value:

¹In BCC or SCC cases, age distribution of excision-cancer absent vs present cases;

²In excision-cancer absent cases, age distribution of BCC vs SCC. BCC: Basal cell carcinoma; SCC: Squamous cell carcinoma.