| Inflammatory exudation due to mucosal erosions or ulcerations |
| Inflammatory bowel disease |
| Crohn disease |
| Ulcerative colitis |
| Gastrointestinal malignancy |
| Gastric cancer |
| Lymphoma |
| Kaposi sarcoma |
| Alpha chain disease |
| Pseudomembranous colitis due to Clostridium difficile |
| Erosive gastritis and multiple gastric ulcers |
| Nonsteroidal antiinflammatory drug (NSAID) enteropathy |
| Post-chemotherapy |
| Cap polyposis |
| Graft-versus-host disease |
| Intestinal loss of lymphatic fluid due to lymphatic obstruction |
| Primary intestinal lymphangiectasia |
| Right-sided heart failure |
| Heart failure |
| Constrictive pericarditis |
| Congenital heart diseases |
| Fontan procedure for single ventricle |
| Retroperitoneal lymph node enlargement (eg, due to chemotherapy, infection, or toxin exposure) |
| Cirrhosis/portal hypertensive gastropathy |
| Hepatic venous outflow obstruction |
| Enteric-lymphatic fistula |
| Mesenteric venous thrombosis |
| Mesenteric tuberculosis or sarcoidosis |
| Sclerosing mesenteritis |
| Neoplasia involving the mesenteric lymph nodes or lymphatics |
| Chronic pancreatitis with pseudocysts |
| Crohn disease |
| Whipple disease |
| Thoracic duct obstruction |
| Congenital malformations of lymphatics |
| Retroperitoneal fibrosis |
