Small intestine cancer CT: Difference between revisions
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{{CMG}}{{AE}}{{Qurrat}} | {{CMG}}{{AE}}{{Qurrat}} | ||
==Overview== | ==Overview== | ||
Abdominal [[CT scan]] may be diagnostic of small intestine cancer. Findings on CT scan suggestive of [[small intestine]] cancer | Abdominal [[CT scan]] may be diagnostic of small intestine cancer. Findings on CT scan suggestive of [[small intestine]] cancer include intrinsic mass with a short segment of bowel wall thickening. | ||
==CT Scan== | ==CT Scan== | ||
*[[Computed tomography|CT]] is the | *[[Computed tomography|CT]] is the study of choice for staging the disease by identifying primary tumor, assessing local, nodal, and distant spread. | ||
*CT | *CT may help in differentiating between the small intestinal cancers. Different cancers have different appearance on CT:<ref name="BuckleyFishman1998">{{cite journal|last1=Buckley|first1=J A|last2=Fishman|first2=E K|title=CT evaluation of small bowel neoplasms: spectrum of disease.|journal=RadioGraphics|volume=18|issue=2|year=1998|pages=379–392|issn=0271-5333|doi=10.1148/radiographics.18.2.9536485}}</ref> | ||
*CT scan | *CT scan may show intrinsic mass with a short segment of bowel wall thickening. | ||
*Invasion of retro peritoneal fat planes, pancreatic and biliary duct, vascular encasement, lymph nodal and distant metastases is common in later stages. | *Invasion of retro peritoneal fat planes, [[pancreatic]] and [[biliary duct]], vascular encasement, lymph nodal and distant metastases is common in later stages. | ||
*In [[Peutz-Jeghers Syndrome]], non-neoplastic lesions may resemble small intestinal neoplasm on [[Computed tomography|CT]]. | *In [[Peutz-Jeghers Syndrome]], non-neoplastic lesions may resemble small intestinal neoplasm on [[Computed tomography|CT]]. | ||
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* Poorly defined homogenous mass displacing intestinal loops | * Poorly defined homogenous mass displacing intestinal loops | ||
* Calcification and desmoplastic reaction is a very specific finding of [[ | * [[Calcification]] and desmoplastic reaction is a very specific finding of [[carcinoid tumors]] on CT | ||
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|'''Non-Hodgkin lymphoma ''' | |'''Non-Hodgkin lymphoma ''' | ||
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* Bulky mass on CT | * Bulky mass on CT | ||
* [[Lymphoma]] is associated with significant dilation of the lumen of intestine | * [[Lymphoma]] is associated with significant dilation of the lumen of [[intestine]] | ||
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|'''Gastrointestinal stromal tumors(GISTs) ''' | |'''Gastrointestinal stromal tumors(GISTs) ''' | ||
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* Intraluminal, subserosal or submucosal homogeneous masses with sharply defined borders | * Intraluminal, subserosal or submucosal homogeneous masses with sharply defined borders | ||
* Calcifications | * [[Calcification|Calcifications]] | ||
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|'''Lipoma ''' | |'''Lipoma ''' | ||
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* Intraperitoneal seedings extending locally | * Intraperitoneal seedings extending locally | ||
* Metastasized tumors give appearance of multiple small nodular masses in intestinal serosa, mesentery and omentum | * Metastasized tumors give appearance of multiple small nodular masses in intestinal [[serosa]], [[mesentery]], and [[omentum]] | ||
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Revision as of 15:24, 16 January 2019
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Small intestine cancer Microchapters |
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Small intestine cancer CT On the Web |
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American Roentgen Ray Society Images of Small intestine cancer CT |
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Risk calculators and risk factors for Small intestine cancer CT |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Qurrat-ul-ain Abid, M.D.[2]
Overview
Abdominal CT scan may be diagnostic of small intestine cancer. Findings on CT scan suggestive of small intestine cancer include intrinsic mass with a short segment of bowel wall thickening.
CT Scan
- CT is the study of choice for staging the disease by identifying primary tumor, assessing local, nodal, and distant spread.
- CT may help in differentiating between the small intestinal cancers. Different cancers have different appearance on CT:[1]
- CT scan may show intrinsic mass with a short segment of bowel wall thickening.
- Invasion of retro peritoneal fat planes, pancreatic and biliary duct, vascular encasement, lymph nodal and distant metastases is common in later stages.
- In Peutz-Jeghers Syndrome, non-neoplastic lesions may resemble small intestinal neoplasm on CT.
| Tumors | Findings on CT |
|---|---|
| Adenocarcinmoa |
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| Carcinoid tumors |
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| Non-Hodgkin lymphoma | |
| Gastrointestinal stromal tumors(GISTs) |
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| Lipoma |
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| Malignant metastasized tumors |
References
- ↑ Buckley, J A; Fishman, E K (1998). "CT evaluation of small bowel neoplasms: spectrum of disease". RadioGraphics. 18 (2): 379–392. doi:10.1148/radiographics.18.2.9536485. ISSN 0271-5333.