Analysis of clinical and dermoscopic features in melanocytic lesions with special emphasis on problematic lesions in children

Figures & data

Figure 1. Clinical and dermoscopic image of a halo nevus on the back of a 4-year-old girl.

(A) Clinical overview. (B) Close-up clinical image showing a pigmented lesion surrounded by a whitish halo. (C) With dermoscopy, the lesion appears almost completely involuted, with a homogeneous pattern, surrounded by a rim of scar-like depigmentation.

Figure 2. Dermoscopy images of three acral lesions.

(A) A small acquired acral nevus showing a parallel furrow pattern. (B) Congenital acral nevus presenting a palpable area in the center of the lesion and displaying a grayish coloration by dermoscopy, corresponding to a dermal component of the nevus. At the periphery, a parallel furrow pattern can be detected. (C) Dermoscopy of an acral melanoma, arising on a pre-existing nevus. The melanoma was growing as a nodular component displaying a blue–white veil and an ulcerated red area.

Figure 3. Eclipse nevus on the scalp of a 12-year-old boy.

(A) Clinical view with presence of a white central area surrounded by a rim of brown pigmentation. (B) Under a dermoscope, the lesion shows a pigment network with perifollicular hypopigmentation, and scattered homogeneous brown globules. At the center, a hypopigmented, white area is detected.

Figure 4. Compound melanocytic nevus of the genital area in a 13-year-old girl.

(A) Clinical image showing a dark brown macule on the labia. (B) On dermoscopy, the lesion shows a mixed pattern with a homogeneous brown pigmentation and a central blue–grey area.

Figure 5. Congenital melanocytic nevi.

(A) Small (<1.5 cm diameter) congenital nevi on the back of an 8-year-old girl. (B) Medium size (1.5–20 cm) congenital nevus on the arm of an 8-year-old girl. (C) Giant congenital nevus (>20 cm), involving the area of the buttocks and the back, in a 9-year-old boy. Of note, the presence of multiple satellite nevi can be noticed.

Figure 6. Clinical images of a Spitz and Reed nevus.

(A) A Spitz and (B) a Reed nevus arising, respectively, as a pink and black papule on the upper and lower arm of a 3-year-old boy. (C) Dermoscopy of nonpigmented Spitz nevus with dotted vessels and pinkish background. (D) Dermoscopy of Reed nevus, showing a globular pattern, composed by heavily pigmented brown-to-black globules.

Figure 7. Clinical images of a pyogenic granuloma and an atypical Spitz tumor.

(A) A pyogenic granuloma and (B) an atypical Spitz tumor arising on the lower arm of two prepubertal children. Both lesions presented as pink to red nodules, partially covered by a blood crust. (C) Dermoscopy of pyogenic granuloma, displaying multiple red lacunes intersected by whitish lines. In the upper part of the lesion, a small ulcerated area is visible. (D) Aspecific dermoscopic pattern of an atypical Spitz tumor presenting a pink background with a few dotted vessels and a keratotic surface partially covered by a blood crust.

Activity Evaluation: Where 1 is strongly disagree and 5 is strongly agree

	1	2	3	4	5
1. The activity supported the learning objectives.
2. The material was organized clearly for learning to occur.
3. The content learned from this activity will impact my practice.
4. The activity was presented objectively and free of commercial bias.