small intestine tumours Flashcards
why is the small intestine protected against malignancy
- high population of lymphoid tissue
- secretion of IgA
where is adenocarcinoma found
duodenum and jejunum
what is the most common tumour of the small intestine
adenocarcinoma
where are lymphomas found
ileum
what is the most common type of lymphoma
B cell type arising from MALT
what do most T cell lymphomas look like
ulcerated plaques or strictures in proximal small bowel
what are some factors that cause adenocarcinoma
- coeliac
- crohns
what type of lymphoma does coeliac disease cause
T cell type
what does lymphoma present with
- abdominal pain
- diarrhoea
- anorexia
- weight loss
- anaemia symptoms
- palpable mass
what investigations can be done for lymphoma
ultrasound followed by MRI
what does ultrasound detect in lymphoma
mass lesion
treatment of adenocarcinoma
surgically remove the segmental resection
where do carcinoid tumours originate
enterochromaffin cells
where is the most common types of carcinoid tumours
appendix and terminal ileum
what is done for treatment of carcinoid tumour
surgery
