| Observed lesions | Number of lesions | Percentage of lesion | Endoscopic prevalence | |
| Esophagus | Peptic esophagitis | 235 | 16.64 | 22.99 |
| Mycotic oesophagitis | 59 | 4.18 | 5.77 | |
| Caustic esophagitis | 9 | 0.6 4 | 0.88 | |
| Other esophagitis | 4 | 0.28 | 0.39 | |
| Oesophageal ulcer | 15 | 1.06 | 1.47 | |
| Oesophageal dysmitosis | 14 | 1.00 | 1.37 | |
| Polyp | 4 | 0.28 | 0.39 | |
| Varicose veins | 99 | 7.01 | 9.68 | |
| Stenosis | 18 | 1.2 8 | 1.76 | |
| Mega-esophagus | 3 | 0.2 1 | 0.30 | |
| Constrictions upper 1/3 | 1 | 0.07 | 0.10 | |
| Diverticulum | 1 | 0.07 | 0.10 | |
| Total oesophageal lesions | 462 | 3 2.7 2 | 41 | |
| Stomach | gastropathie | 542 | 38.38 | 48.11 |
| Gastric Ulcer (UG) | 172 | 12.18 | 17.10 | |
| Gastric dysmitosis | 23 | 1.63 | 2.29 | |
| polyps | 4 | 0.28 | 0.40 | |
| gastroparesis | 7 | 0.50 | 0.69 | |
| Antro-pyloric stenosis | 7 | 0.50 | 0.69 | |
| Total gastric lesions | 755 | 53.47 | 61.93 | |
| Duodenum | Duodenal ulcer (DU) | 99 | 7.01 | 9.91 |
| Duodenopathie | 53 | 3.75 | 5.30 | |
| Biliary duodeno-gastric reflux | 33 | 2.34 | 3.30 | |
| Bulbar-duodenal stenosis | 7 | 0.50 | 0.70 | |
| Duodenal polyp | 2 | 0.14 | 0.20 | |
| Dysmitosis of the duodenal papilla | 1 | 0.07 | 0.10 | |
| Total duodenal lesions | 195 | 13.81 | 19.81 | |
| Total observed lesions | 1412 | 100 | ||