Fig. 2
From: Giant congenital melanocytic nevus of the scalp: from clinical-histological to molecular diagnosis
a Predominantly nested intraepidermal melanocytes (rectangle) in patient#1 (hematoxylin–eosin, original magnification × 40). b Predominantly as single cells (rectangle) in patient#2 (hematoxylin–eosin, original magnification × 40). c Predominantly small pigment granules (rectangle) and obvious pleomorphism of nucleolus and cytoplasmic abundance (arrow) in patient#1 (hematoxylin–eosin, original magnification × 400). d Predominantly thick pigment granules (rectangle) and no obvious cytologic atypia in patient#2 (hematoxylin–eosin, original magnification × 400). e Epidermal thickness and fiber proliferation in patient#1 (hematoxylin–eosin, original magnification × 100)