wk 5 9 Colorectal cancer Flashcards
how does colorectal cancer tpyically present 7
emergency (bowel ob/bleeding)
chronic
- change in bowel habits
- colicky ab pain
- iron defiency anaemia (unexplained)
- rectal bleeding
- weight loss
- ab mass
t/f iron defiency anaemia with no other risk factors is a big alarm
true
-OGD and colonscopy reqd
lower rectal bleeding
bright and red
blood from caecum
may not see, iron defiency anaemia
3 investigations if suspected colorectal carcinoma
barium enema
sigmoidoscopy/colonoscopy*** (best)
CT colonography
bright red blood is found in stool, which investigation is appropriate
sigmoidoscopy
what drug might be given to relax a patient during colonoscopy
buscopan
what aspect of a colonoscopy is painful
gas entering, stretching
removing polyps ect isnt painful
t/f cancer staging can be carried out in colonoscopy
false
difficult to determine, could be v large with no metastasis
3 drugs given for bowel preparation and ‘faecal tagging’
picolax
omnipaque
gastrogafin
cancer is diagnosed, what are the next steps
histopathology confirmation Cancer staging -rectal cancer -MRI -CT chest/abdo/pelvis MDT Surgery FOU (Follow up)
t/f radiotherapy for colorectal cancer can lead to complete removal of tumour
true
downsize then surgery
superior mesenteric artery supplies
all sml intestine
2/3 colon
which type of surgery willl lead to a permanent stoma
APR (abdominoperianal resection
