Regarding small bowel tumours,
1. Most of the bowel tumours arise from the small bowel
2. Small bowel tumours are most common in the duodenum
3. Gastrointestinal stromal tumours (GIST) have a strong association with Garner's syndrome
4. Most of the small bowel lipomas are found in the distal small bowel
5. Most of the symtomatic small bowel tumours are benign
Answers: F, T, F, T, F
Notes:
Although the small bowel accounts for 90% of bowel mucosal surface, small bowel tumours account for less than 5% of bowel tumours. Tumours aremost common in the duodenum, followed by jejunum, followed by ileum. GIST tumours have a strong association with NF-1. Most of the lipomas are found in the distal small bowel and usually present with intussusception or bleeding. 60-70% of the small bowel tumours are malignant.
Reference:
Ramchandran L et al. Multidetector row CT of small bowel tumours. Clinical Radiology. Volume 62. Pages 607-614
