Small intestine cancer CT: Difference between revisions
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*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]]. | ||
{| | {| | ||
| | !style="background:#4479BA; color: #FFFFFF;" align="center" + |Tumors | ||
!style="background:#4479BA; color: #FFFFFF;" align="center" + |Findings on CT | |||
!Findings on CT | |||
|- | |- | ||
|'''Adenocarcinmoa''' | |style="background:#DCDCDC;" align="center" + |'''Adenocarcinmoa''' | ||
| | |style="background:#F5F5F5;" + | | ||
* Ulcerative lesions, nodular lesions and annular lesions | * Ulcerative lesions, nodular lesions and annular lesions | ||
|- | |- | ||
|'''Carcinoid tumors''' | |style="background:#DCDCDC;" align="center" + |'''Carcinoid tumors''' | ||
| | |style="background:#F5F5F5;" + | | ||
* Poorly defined homogenous mass displacing intestinal loops | * Poorly defined homogenous mass displacing intestinal loops | ||
* [[Calcification]] and desmoplastic reaction is a very specific finding of [[carcinoid tumors]] on CT | * [[Calcification]] and desmoplastic reaction is a very specific finding of [[carcinoid tumors]] on CT | ||
|- | |- | ||
|'''Non-Hodgkin lymphoma ''' | |style="background:#DCDCDC;" align="center" + |'''Non-Hodgkin lymphoma ''' | ||
| | | style="background:#F5F5F5;" + | | ||
* 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]] | ||
|- | |- | ||
|'''Gastrointestinal stromal tumors(GISTs) ''' | |style="background:#DCDCDC;" align="center" + |'''Gastrointestinal stromal tumors(GISTs) ''' | ||
| | | style="background:#F5F5F5;" + | | ||
* Intraluminal, subserosal or submucosal homogeneous masses with sharply defined borders | * Intraluminal, subserosal or submucosal homogeneous masses with sharply defined borders | ||
* [[Calcification|Calcifications]] | * [[Calcification|Calcifications]] | ||
|- | |- | ||
|'''Lipoma ''' | |style="background:#DCDCDC;" align="center" + |'''Lipoma ''' | ||
| | | style="background:#F5F5F5;" + | | ||
* Intraluminal homogeneous mass, well-circumscribed and with some fat attenuation | * Intraluminal homogeneous mass, well-circumscribed and with some fat attenuation | ||
|- | |- | ||
|'''Malignant metastasized tumors ''' | |style="background:#DCDCDC;" align="center" + |'''Malignant metastasized tumors ''' | ||
| | | style="background:#F5F5F5;" + | | ||
* 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]] | ||
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 |
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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.