Department of Pathology, Renji Hospital, Shanghai Second Medical University, Shanghai 200001, China;
Department of Pathology, Renji Hospital, Shanghai Second Medical University, Shanghai 200001, China;
Department of Pathology, Renji Hospital, Shanghai Second Medical University, Shanghai 200001, China;
Department of Pathology, Renji Hospital, Shanghai Second Medical University, Shanghai 200001, China;
esophagogastric junction; malignant melanoma, primary; esophagus;