Description:

History: Lentigo solar(left part) crossing over with a seborrhoeic keratosis(right part). A 83-year-old man developed an enlarging pigmented patch of his cheek.A biopsy was performed and pathology confirmed the diagnosis of solar lentigo. Dermoscopic description: Right part(seborrhoeic keratosis)- Milia-like cysts,comedo-like openings. Left part(lentigo solar)-sharply demarcated pigmented network and moth-eaten border.