UC and crohns Flashcards
When do both diseases peak?
Late adolescence and early adulthood
what factors do people believe cause CIBD?
intestinal epithelial dysfunction
aberrant mucosal immune response
genetic susceptibility
altered intestinal flora
What gene is believed to be involved in the development of crohns?
NOD2
what is affected in UC?
only the large bowel; rectum and colon
why is the rectum always affected in UC?
the disease extends proximally so starts at the rectum
what is the distribution in UC?
continious
what layers are involved in UC?
mucosal layer only
are crypts and granulomas seen in UC?
Granulomas are not seen
crypts are seen
what is the clinical presentation of UC?
Bloody diarrhoea
lower abdo pain and cramps
rectal bleeding
where does Crohns affect?
can affect any part of the GI from the mouth to the anus
where is crohns most likely to affect?
terminal ileum
proximal colon
what is the distribution seen in crohns?
patchy and discontinious
what type of ulcers are seen in crohns?
deep, fissuring that look like knife clefts
what layers are affected in crohns?
its trans-mural so all layers
granulomas can be present in crohns, what is a granuloma?
an aggregate of active epithelioid histiocytes