Malignant acanthosis nigricans with Leser–Trélat sign and tripe palms: A case report

Figure 1 Patient’s skin appearance and examination results. A: Skin lesions; B: Cervical pathology: Epidermal hyperkeratosis, basal cell hyperplasia, pigmentation, and papilla protrusion (hematoxylin–eosin staining: 100 ×); C-E: Facial flat brown maculopapular pathology: Basal cell papilloma, hyperpigmentation, and hyperkeratosis (C: Hematoxylin–eosin staining: 40 ×; D: Hematoxylin–eosin staining: 100 ×; E: Hematoxylin–eosin staining: 200 ×); F and G: A dermoscopic examination of the surface of the hand showed consistent gray–brown papillary hyperplasia and diffuse dark brown to black–gray pigmentation with slight scales.