case_images: PMC7238344_01
case_images: Diffuse black discoloration of the esophagus with linear ulcerated mucosa.
case_images: CRIGM2020-1416743.001.jpg
case_images: PMC7238344_01_CRIGM2020-1416743.001.jpg
case_images: fig1
case_images: Circumferential black discoloration of the distal esophageal mucosa with clear demarcation with the uninvolved GE junction.
case_images: CRIGM2020-1416743.002.jpg
case_images: PMC7238344_01_CRIGM2020-1416743.002.jpg
case_images: fig2