Endoscopic submucosal dissection for malignant melanoma and esophageal squamous cell carcinoma: A case report and review of literature

Figure 1 Endoscopic and gross findings of the esophageal lesion. A: Superficial elevated lesion with central depression (Paris type 0-IIa + IIc) located 31-36 cm from the upper incisors; B: Magnifying endoscopy with narrowband imaging showing type B1 and focal B2 intrapapillary capillary loops according to the Japan Esophageal Society classification; C: Iodine staining revealing an iodineunstained area; D: Resected specimen, measuring 65 cm × 4.5 cm × 0.2 cm, with an iodineunstained region of 6.0 cm × 3.5 cm on the mucosal surface.