[Lymphography].
D004064:Digestive System / Q000000981:diagnostic imaging; D004938:Esophageal Neoplasms / Q000000981:diagnostic imaging; D006801:Humans; D008220:Lymphography; D009369:Neoplasms / Q000000981:diagnostic imaging; D012004:Rectal Neoplasms / Q000000981:diagnostic imaging; D013274:Stomach Neoplasms / Q000000981:diagnostic imaging