polyps <ul><li>Single or multiple </li></ul><ul><li>Sessile/ pedunculated </li></ul><ul><li>Best seen with DCBE </li></ul>...
polyps <ul><li>Adenomatous  benign e.g. familial polyposis  </li></ul><ul><li>undergo malignant change </li></ul><ul><li>V...
 
 
 
Colonic carcinoma <ul><li>BE  LT  annular narrowing-apple core </li></ul><ul><li>  RT  fungating FD </li></ul><ul><li>Mult...
CT/MRI in rectal carcinoma <ul><li>Main role  local invasion </li></ul><ul><li>  postoperative recurrence </li></ul><ul><l...
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Presentation3

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Presentation3

  1. 3. polyps <ul><li>Single or multiple </li></ul><ul><li>Sessile/ pedunculated </li></ul><ul><li>Best seen with DCBE </li></ul><ul><li>Often impossible to exclude malignancy </li></ul><ul><li>But size more than 2cm short thick stalk </li></ul><ul><li>irregular surface rapid rate of growth </li></ul>
  2. 4. polyps <ul><li>Adenomatous benign e.g. familial polyposis </li></ul><ul><li>undergo malignant change </li></ul><ul><li>Villous adenoma sessile large </li></ul><ul><li>high incidence of malignant change </li></ul><ul><li>Polypoidal carcinoma </li></ul><ul><li>Juvenile polyp children developmental </li></ul><ul><li>Inflammatory polyp </li></ul>
  3. 8. Colonic carcinoma <ul><li>BE LT annular narrowing-apple core </li></ul><ul><li> RT fungating FD </li></ul><ul><li>Multiple carcinoma should be excluded </li></ul><ul><li>Elderly-BE alternative is CT with rectal contrast/air </li></ul><ul><li>Wall thickening or </li></ul><ul><li>irregular narrowing </li></ul>
  4. 9. CT/MRI in rectal carcinoma <ul><li>Main role local invasion </li></ul><ul><li> postoperative recurrence </li></ul><ul><li>Invasion of organs </li></ul><ul><li>sacrum </li></ul><ul><li>pelvic side walls </li></ul><ul><li>LNs </li></ul><ul><li>liver & para-aortic LNs </li></ul>
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