Tumours: Polyps Flashcards
These are always _____. They don’t usually obstruct the lumen.
These are always pathological. They don’t usually obstruct the lumen.
what are they?
They are a protrusion above an epithelial surface. It is a tumour.
most polyps are non-_______ and are most common in the ___ ____
non-neoplastic, large bowel
polyps may be seen in ___ or ___
crohn’s or UC
True neoplastic polyps are far more common in the ___ than ___ bowel - most often termed ______
True neoplastic polyps are far more common in the large than small bowel - most often termed adenomas
what are the types of benign epithelial polyps? 3
adenomas, juvenile polyps, peutz-jeghers syndrome
what are the malignancy epithelial polyps ? 2
polypoid adenocarcinomas
carcinoid polyps
what are the types of benign mesenchymal polyps? 5
lipoma
lymphangioma
haemangiomas
fibromas
leiomyoma
what are the types of malignant mesenchymal polyps? 2
sarcomas
lymphomatous polyps
They can be described by their shape: _____, ____ or ____ .
They can be described by their shape: Pedunculated (having a stalk) , sessile (flat) or flat.
There is usually a ___ ____ within the stalk so when removing these polyps you have to ___ ___ and ___ ___
There is usually a blood vessel within the stalk so when removing these polyps you have to inject adrenaline and heavily cauterise
polyps have a ___ ____ lining histologically
dysplastic epithelial
