Small intestine cancer CT: Difference between revisions
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__NOTOC__ | __NOTOC__ | ||
{{Small intestine cancer}} | {{Small intestine cancer}} | ||
{{CMG}} | {{CMG}}{{AE}}{{Qurrat}} | ||
==Overview== | ==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 | |||
==CT Scan== | |||
*[[Computed tomography|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:<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 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 [[Computed tomography|CT]]. | |||
* | {| | ||
* | !style="background:#4479BA; color: #FFFFFF;" align="center" + |Tumors | ||
!style="background:#4479BA; color: #FFFFFF;" align="center" + |Findings on CT | |||
|- | |||
|style="background:#DCDCDC;" align="center" + |'''Adenocarcinmoa''' | |||
|style="background:#F5F5F5;" + | | |||
* Ulcerative lesions, nodular lesions and annular lesions | |||
|- | |||
|style="background:#DCDCDC;" align="center" + |'''Carcinoid tumors''' | |||
|style="background:#F5F5F5;" + | | |||
* Poorly defined homogenous mass displacing intestinal loops | |||
* [[Calcification]] and desmoplastic reaction is a very specific finding of [[carcinoid tumors]] on CT | |||
|- | |||
|style="background:#DCDCDC;" align="center" + |'''Non-Hodgkin lymphoma ''' | |||
| style="background:#F5F5F5;" + | | |||
* Bulky mass on CT | |||
* [[Lymphoma]] is associated with significant dilation of the lumen of [[intestine]] | |||
|- | |||
|style="background:#DCDCDC;" align="center" + |'''Gastrointestinal stromal tumors(GISTs) ''' | |||
| style="background:#F5F5F5;" + | | |||
* Intraluminal, subserosal or submucosal homogeneous masses with sharply defined borders | |||
* [[Calcification|Calcifications]] | |||
|- | |||
|style="background:#DCDCDC;" align="center" + |'''Lipoma ''' | |||
| style="background:#F5F5F5;" + | | |||
* Intraluminal homogeneous mass, well-circumscribed and with some fat attenuation | |||
|- | |||
|style="background:#DCDCDC;" align="center" + |'''Malignant metastasized tumors ''' | |||
| style="background:#F5F5F5;" + | | |||
* Intraperitoneal seedings extending locally | |||
* Metastasized tumors give appearance of multiple small nodular masses in intestinal [[serosa]], [[mesentery]], and [[omentum]] | |||
|} | |||
==References== | ==References== | ||
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[[Category:Disease]] | [[Category:Disease]] | ||
[[Category:Up-To-Date]] | |||
[[Category:Oncology]] | |||
[[Category:Medicine]] | |||
[[Category:Gastroenterology]] | |||
[[Category:Surgery]] | |||
[[Category:Radiology]] | |||
Latest revision as of 16:40, 16 January 2019
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Small intestine cancer Microchapters |
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Diagnosis |
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Treatment |
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Case Studies |
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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 |
|
| Carcinoid tumors |
|
| Non-Hodgkin lymphoma | |
| Gastrointestinal stromal tumors(GISTs) |
|
| Lipoma |
|
| 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.