Crohn's Disease Flashcards
Aetiology?
may be genetic susceptibilty- NOD2 gene association
Pathology?
chronic transmural non-caseating granulomatous inflammation
where does it affect?
anywhere in GIT but terminal ileum predominantly
Characteristic presenting symtpoms?
- weight loss
- abdominal pain
- diarrhoea
- nausea/ vomiting
- fever & lethargy
pathophysiological changes?
Cobblestone mucosa
Rosethorn ulcers
Obstruction, stricture
Hyperplasia of mesenteric lymph nodes
Narrowing of lumen
Skip lesions
sign?
oral apthous ulcers
extraintestinal signs?
- clubbing
- erythema nodosum
systemic signs?
- fever
- tachycardia
Investigations?
- Bloods - ESR, CRP, FBC
- Stool- MC&S, CDiff toxin, foecal calprotectin
- Imaging
- AxR
- CT/MRI
- barium X-Ray
- ileocolonoscopy + biopsy (or endoscopy if gastro-duodenal disease)
what would the blood test findings be?
CRP, ESR and WCC raised
Pharmacological management?
Pharmacological:
first presentation–> Prednisolone
second inflammatory exacerbation –> ADD Azathioprine
When is surgery done in Crohn’s?
only if medical management fails