Fig. 3From: Complete remission in metastatic primary malignant melanoma of the esophagus with nivolumab: a case reportEsophagogastroduodenoscopy revealed a 20-mm flat, pigmented lesion with a nonpigmented nodule in the mid-esophagus (a), a 10-mm pigmented submucosal tumor-like growth in the distal esophagus (b), and polypoid lesions with central depression in the distal esophagus (c) and stomach (d). All were confirmed to be malignant melanoma lesions on pathologyBack to article page