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Rectal carcinoma

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

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Rectal carcinoma affects both sexes equally. It is most common in the 50-70 year old age group; however, any age from about the twenties upwards may be affected.

Rectal carcinoma accounts for about a third of tumours of the large intestine.

Possible predisposing factors include ulcerative colitis, familial polyposis and pre-existing adenoma.

The vast majority of carcinomas are adenocarcinomas.

Macroscopically, rectal carcinomas are usually ulcerating. Stenosing rectal carcinomas may occur at the recto-sigmoid junction. Rectal carcinomas may also be colloidal or papilliferous.

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