| | Reference | Sex, age | Comorbidity | Presenting symptom(s) | Location | Diameter (mm) | Treatment | Follow-up (months) |
| | Shin et al. [32] | M, 40 | NA | Melena | Cecum | 25 | Endoscopic polypectomy | 6 | | Nakaya et al. [33] | F, 59 | Hepatic cyst | Melena | Descending colon | 15 | Endoscopic polypectomy | NA | | Thibault et al. [34] | M, 54 | NA | Abdominal pain, hematochezia | Descending colon | 20 | Endoscopic polypectomy | NA | | Meyer-Herbon et al. [23] | M, 54 | Gastric adenocarcinoma | Hematochezia | Descending colon | 10 | Endoscopic polypectomy | 8 | | Park et al. [35] | F, 62 | NA | Anemia | Duodenum | 10 | Endoscopic polypectomy | 14 | | Hirakawa et al. [36] | M, 60 | End-stage renal disease | Anemia | Duodenum | 8 | Endoscopic polypectomy | 6 | | van Vilet et al. [9] | M, 65 | Cardiovascular disease | Melena, anemia | Duodenum | 10 | Endoscopic mucosal resection | 1 | | Meeks et al. [37] | M, 59 | Hepatitis C | Melena | Duodenum | 8 | Endoscopic polypectomy | NA | | Craig et al. [10] | M, 31 | Testicular carcinoma, lymphoma | Reflex esophagitis | Esophagus | 25 | Endoscopic polypectomy | NA | | Hoekstra et al. [11] | M, 15 | Hiatal hernia, reflux esophagitis | Dysphagia, weight loss, vomiting | Esophagus | NA | Endoscopic polypectomy | NA | | Okada et al. [12] | M, 56 | NA | Chest pain | Esophagus | NA | Endoscopic mucosal resection | NA | | Van Eeden et al. [13] | F, 55 | NA | Hematemesis, dysphagia | Esophagus | 11 | Endoscopic polypectomy | NA | | Tajika et al. [38] | M, 63 | Esophageal cancer | Asymptomatic | Esophagus | 15 | Endoscopic polypectomy | NA | | Iwamuro et al. [39] | M, 78 | None | Gastritis | Esophagus | 10 | Biopsy only | 39 | | Seoung et al. [14] | M, 58 | NA | Asymptomatic | Esophagus | 10 | Endoscopic mucosal resection | 6 | | Seoung et al. [14] | M, 54 | None | Asymptomatic | Esophagus | 5 | Endoscopic mucosal resection | 6 | | Hirata et al. [16] | F, 82 | NA | Melena | Ileum | NA | Segmental resection | NA | | Kikuchi et al. [40] | F, 86 | Cardiovascular disease | Melena | Ileum | 7 | Segmental resection | NA | | Nagoya et al. [17] | F, 63 | None | Anemia | Ileum | 7 | Endoscopic polypectomy | NA | | Stojsic et al. [27] | F, 13 | NA | Intussusception | Ileum | 40 | Segmental resection | NA | | Van Eeden et al. [13] | F, 55 | NA | Melena, anemia | Ileum | 9 | Segmental resection | NA | | Chou et al. [7] | M, 58 | Hepatitis B, cirrhosis | Melena | Ileum | 10 | Segmental resection | 6 | | Chou et al. [18] | F, 67 | Hepatitis B | Melena | Jejunum | 15 | Endoscopic polypectomy | NA | | Iravani et al. [19] | F, 53 | Metastatic melanoma | Melena | Jejunum | 16 | Segmental resection | NA | | Misawa et al. [20] | M, 58 | NA | Anemia | Jejunum | 19 | Segmental resection | NA | | Moffatt et al. [2] | M, 78 | NA | Anemia | Jejunum | 20 | Segmental resection | NA | | Katsurahara et al. [41] | M, 65 | History of stroke | Melena | Jejunum | 33 | Segmental resection | 18 | | Shirakawa et al. [42] | M, 72 | NA | Melena | Jejunum | NA | Endoscopic polypectomy | 13 | | Kuga et al. [21] | M, 55 | None | Anemia | Jejunum | 4 | Endoscopic polypectomy | 10 | | Field et al. [24] | F, 80 | Atrial fibrillation | Hematochezia | Rectum | NA | Endoscopic polypectomy | NA | | Giaccaglia et al. [28] | M, 43 | Hypertension, gout | Hematochezia, tenesmus | Rectum | 30 | Endoscopic polypectomy | NA | | Moparty et al. [43] | F, 26 | NA | Asymptomatic | Rectum | 5 | Endoscopic polypectomy | NA | | Blanchard et al. [44] | F, 5 | None | Hematochezia | Rectum | 4 | Endoscopic polypectomy | NA | | Castle et al. [45] | M, 16 | None | Hematochezia | Rectum | NA | Transanal mucosal sleeve resection | 24 | | Hamada et al. [46] | M, 59 | Chronic myelogenous leukemia | Altered bowel habit | Rectum | 10 | Endoscopic polypectomy | NA | | Garofalo et al. [25] | M, 0.3 | NA | Intussusception | Sigmoid colon | 20 | Segmental resection | NA | | González-Vela et al. [4] | F, 62 | NA | Hematochezia | Sigmoid colon | 20 | Endoscopic polypectomy | 8 | | Chen et al. [47] | M, 36 | None | Melena, weight loss | Sigmoid colon | Range: 4–8 | Endoscopic polypectomy | 1 | | Yamashita et al. [22] | M, 61 | Diabetic nephropathy | Melena | Small bowel | 15 | Segmental resection | NA | | Quiros et al. [3] | F, 67 | None | Anemia | Stomach | 10 | Endoscopic polypectomy | NA | | Erarslan et al. [48] | M, 64 | None | Hematemesis, melena | Stomach | 8 | Endoscopic polypectomy | NA | | Malhotra et al. [31] | F, 40 | None | Anemia | Stomach | NA | Endoscopic polypectomy | NA | | Val-Bernal et al. [49] | F, 72 | Hypothyroidism | Melena | Stomach | 25 | Endoscopic polypectomy | NA | | Val-Bernal et al. [49] | M, 66 | Cardiovascular disease | Anemia | Stomach | 7 | Endoscopic polypectomy | NA | | Kusakabe et al. [50] | M, 82 | NA | Melena, anemia | Stomach | 30 | Endoscopic polypectomy | 12 | | Shibata et al. [26] | M, 35 | H. pylori infection | Pain | Stomach | 20 | Endoscopic polypectomy | 2 | | Hocke and Bosseckert [51] | F, 60 | Liver cirrhosis, colon cancer | Anemia | Transverse colon | NA | Hemicolectomy | NA | | Blanchard et al. [44] | F, 2 | Liver transport for biliary atresia | Fever, hematochezia | Transverse colon | NA | Endoscopic polypectomy | NA | | Yan et al. [52] | M, 40 | None | Hematochezia | Transverse colon | 25 | Endoscopic polypectomy | 3 |
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