Surgical experiences in pediatric pilomatricoma: punch incision and elliptical excision

Figures & data

Figure 1. Clinical images of the punch incision method. Patient 1: (a) removal of the main mass. (b) Appearance of the defect after inspection to ensure that the lesion is removed. Patient 2: (c) clinical manifestation of pilomatricoma before punch incision and long axis of the lesion (1.5 cm). (d) Clinical image taken after wound closure; the wound length did not exceed 0.6 cm.

Table 1. Tumor characteristics.

Variable	Overall (n = 79)	Elliptical excision (n = 57)	Punch incision (n = 22)	p value
Location, n (%)				.106
Scalp	2 (2.5)	0 (0)	2 (9.1)
Face	41 (51.9)	29 (50.9)	12 (54.5)
Forehead	6 (7.6)	5 (8.8)	1 (4.5)
Cheek	21 (26.6)	13 (22.8)	8 (36.4)
Peri-orbital	8 (10.1)	5 (8.8)	3 (13.6)
Peri-auricular	6 (7.6)	6 (10.5)	0 (0)
Neck	10 (12.7)	8 (14.0)	2 (9.1)
Trunk	3 (3.8)	1 (1.8)	2 (9.1)
Upper extremities	18 (22.8)	15 (26.3)	3 (13.6)
Lower extremities	5 (6.3)	4 (7.0)	1 (4.5)
Duration, months (SD)	7.37 (8.96)	7.98 (9.07)	5.80 (8.65)	.344
Long axis size, cm (SD)	1.01 (0.53)	1.06 (0.52)	0.87 (0.54)	.157
Symptomatic, n (%)	51 (64.6)	41 (71.9)	10 (76.9)	.715
Surface color, n (%)				.809
Erythematous	32 (40.5)	25 (43.9)	7 (31.8)
Bluish	13 (16.5)	9 (15.8)	4 (18.2)
Flesh-colored	31 (39.2)	21 (36.8)	10 (45.5)
Yellowish	3 (3.8)	2 (3.5)	1 (4.5)
Initial diagnosis, n (%)				.112
Pilomatricoma	63 (79.7)	48 (84.2)	15 (68.2)
Others^a	16 (20.3)	9 (15.8)	7 (31.8)

SD: standard deviation.

^a Others include epidermal cysts, calcinosis cutis, neurofibroma, trichoblastoma, lipoma, and furuncle.

Table 2. Surgical outcomes.

Variable	Overall (n = 79)	Elliptical excision (n = 57)	Punch incision (n = 22)	p Value
Complication, n (%)	2 (2.5)	2 (3.5)	0 (0)	.374
Recurrence, n (%)	1 (1.3)	0 (0)	1 (4.5)	.105
Long axis wound size, cm (SD)	1.58 (0.96)	2.00 (0.81)	0.51 (0.08)	<.001***

SD: standard deviation.

*** p< .001.