| Age | 
        Sex | 
        Site    of primary tumor | 
        Treatment    of primary tumor | 
        Interval    between the primary tumor and intestinal metastasis | 
        Presentation    of intestinal metastasis | 
        Site    of intestinal metastasis | 
        Treatment    of intestinal metastasis | 
        Results | 
        Reference    no | 
      
      
        | 54 | 
        M | 
        Supraglottic    larynx | 
        T3N1M0 stage    III | 
        SX | 
        18 months | 
        Intestinal    bleeding/melena | 
        Ileum | 
        Resection,    anastomosis | 
        10 | 
      
      
        | 71 | 
        M | 
        Supraglottic    larynx | 
        T4N0 stage IV | 
        SX + CT | 
        24 months | 
        Obstruction | 
        Ileum | 
        Resection,    anastomosis | 
        11 | 
      
      
        | 71 | 
        M | 
        Vocal fold | 
        ND | 
        SX + PORT | 
        56 months | 
        Biliary    obstruction | 
        Ampulla of    vater | 
        Endobiliary    stenting and palliative CT | 
        12 | 
      
      
        | 65 | 
        M | 
        Base of tongue | 
        T4N2cM0 stage    IV | 
        CT + IMRT | 
        10 months | 
        Melena/    intestinal bleeding | 
        Jejunum | 
        PalliativeCT | 
        13 | 
      
      
        | 71 | 
        M | 
        Supraglottic    larynx | 
        T4N2M0 stage    IV | 
        SX + PORT | 
        13 months | 
        Obstruction | 
        Duodenum | 
        Endoscopic    duodenal stenting | 
        Present case | 
      
      
        | ND: No    Description, SX: Surgery, RT: Radiotherapy, PORT: Postoperative Radiotherapy,    CT: Chemotherapy |