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