| Feature | Details |
|---|---|
Clinical features | Blood and mucus in the stool occur with cramping lower abdominal pain. |
Causes | Listed causes are inflammatory bowel disease, microscopic colitis, neoplasia, ischaemia and irritable bowel syndrome. |
Investigations | Faecal calprotectin and ileocolonoscopy with biopsies are listed. |
| Feature | Details |
|---|---|
Clinical features | Steatorrhoea, undigested food in the stool, weight loss and nutritional disturbances are listed. |
Pancreatic causes | Chronic pancreatitis, cancer of the pancreas and cystic fibrosis are listed. |
Enteropathy causes | Coeliac disease, tropical sprue, lymphoma and lymphangiectasia are listed. |
Investigations | Listed tests are faecal elastase; ultrasound, computed tomography and magnetic resonance cholangiopancreatography; small bowel biopsy; and barium follow-through or small bowel magnetic resonance imaging. |
| Feature | Details |
|---|---|
Clinical features | Large-volume watery stool, abdominal bloating and cramping mid-abdominal pain are listed. |
Causes | Listed causes include Crohn disease, neuroendocrine tumour, small bowel carcinoid and VIPoma. |
Drug-induced causes | Non-steroidal anti-inflammatory drugs, aminosalicylates and selective serotonin re-uptake inhibitors are listed. |
Investigations | Listed tests are faecal calprotectin, stool volume, serum gut hormone profile, 24-hour urine 5-hydroxyindoleacetic acid, and barium follow-through or small bowel magnetic resonance imaging. |