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Gastrointestinal System > Pathology of the Colorectal Carcinoma > Flashcards

Pathology of the Colorectal Carcinoma Flashcards

1
Q

polyp

A

profusion above an epithelial surface

tumour (swelling)

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2
Q

differential diagnosis of a colonic polyp

A

adenoma
serrated ployp
polypoid carcinoma
other

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3
Q

types of ployp

A

pedunculated
sessile
flat

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4
Q

most polyps are adenomas

A

tubullovillous
villous
tubular

all are dysplastic

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5
Q

adenoma-carcinoma sequence

A

normal mucosa - adenoma (dysplastic) - adenocarcinoma (invasive)

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6
Q

colorectal carcinoma

A

dukes a - confined by muscular proproa

dukes b - through muscularis propria

dukes c - metastatic to lymph nodes

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7
Q

colorectal carcinoma - left side

A

blood PR
altered bowel habit
obstruction

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8
Q

colorectal carcinoma - right side

A

anaemia

weight loss

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9
Q

diverticular disease

A

common
asymptomatic
related to low fibre diet and increased intralumenal pressure
leads to herniation through the membrane

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10
Q

diverticulum

A

an abnormal sac or pouch formed at a weak point in the wall of the alimentary tract

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11
Q

diverticular disease - complications

A 
inflammation
rupture
abscess
fistula
massive bleeding
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12
Q

ischaemia of the large bowl

A

old people disease - caused by atherosclerosis

left sided disease

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13
Q

pseudomembranous colitis

A

antibiotic-induced
can get it on chemo
anything that kills bacteria

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14
Q

collagenous colitis

A

thickened basement membrane
normal is between 2-3 microns
disease is patchy
associated with intraepithelial inflammatory cells

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15
Q

radiation colitis

A

chronic active or inactive colitis
telangectasia
bizarre stromal cells, bizarre vessels

may be other complications of immunosuppression if also on chemo

consequence of radiotherapy

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16
Q

acute infective colitis

A

rarely drugs, ischaemia, endoscopy prep.

17
Q

common diseases

A 
diverticular 
ischaemia
antibiotic induced
microscopic
radiation
infective
ulcerative
crohns

Gastrointestinal System (43 decks)

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