Fig. 4
The lamina propria of the oral mucosa contained brown-staining spherical particles that included melanin (Fontana–Masson staining, ×40)
Fig. 4 | Maxillofacial Plastic and Reconstructive Surgery
The lamina propria of the oral mucosa contained brown-staining spherical particles that included melanin (Fontana–Masson staining, ×40)