Location
Restricted to the colon and rectum
Starts at the rectum and develops proximally
Proctitis - rectum only
Pancolitis - whole colon
Age group
20-30
Males
Histopathology
Continuous inflammation Non-patchy No granulomas Crypt abscess Superficial inflammation (mucosa, submucosa)
Immunology
Mixed Th1 and Th2 disease
Smoking aggrevates / is protective
Is protective
Clinical presentation
Bloody diarrhoea Urgency Colicky abdominal pain (LIF) Increased bowel frequency Tenesmus Pt wakes up at night with symptoms Incontinence
Extra GI manifestations:
Erythema nodosum
Uveitis
Stomatitis
Determining severity
> 6 bloody stools in 24 hrs + 1 or more of:
Investigations
Bloods
Plain AXR
Colonoscopy - biopsy
Management
5ASA (mesalazine) Steroids Immunosuppressant's (azathioprine) Anti TNF therapy Surgery - if no medications work
Surgery
Very good outcomes
Patient is cured from disease
Stoma bag
Genetics
NOD2
HLA DR2
Associated conditions
PSC
Gallstones
Complications
Colorectal cancer
Toxic megacolon