Small intestine cancer CT: Difference between revisions
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|'''Adenocarcinmoa''' | |'''Adenocarcinmoa''' | ||
|Ulcerative lesions, nodular lesions and annular lesions | | | ||
* Ulcerative lesions, nodular lesions and annular lesions | |||
|- | |- | ||
|'''Carcinoid tumors''' | |'''Carcinoid tumors''' | ||
|Poorly defined homogenous mass displacing intestinal loops | | | ||
Calcification and desmoplastic reaction is a very specific finding of [[Carcinoid tumors]] on CT | * Poorly defined homogenous mass displacing intestinal loops | ||
* Calcification and desmoplastic reaction is a very specific finding of [[Carcinoid tumors]] on CT | |||
|- | |- | ||
|'''Non-Hodgkin lymphoma ''' | |'''Non-Hodgkin lymphoma ''' | ||
|Bulky mass on CT | | | ||
[[Lymphoma]] is associated with significant dilation of the lumen of intestine | * Bulky mass on CT | ||
* [[Lymphoma]] is associated with significant dilation of the lumen of intestine | |||
|- | |- | ||
|'''Gastrointestinal stromal tumors(GISTs) ''' | |'''Gastrointestinal stromal tumors(GISTs) ''' | ||
|Intraluminal, subserosal or submucosal homogeneous masses with sharply defined borders | | | ||
Calcifications | * Intraluminal, subserosal or submucosal homogeneous masses with sharply defined borders | ||
* Calcifications | |||
|- | |- | ||
|'''Lipoma ''' | |'''Lipoma ''' | ||
|Intraluminal homogeneous mass, well-circumscribed and with some fat attenuation | | | ||
* Intraluminal homogeneous mass, well-circumscribed and with some fat attenuation | |||
|- | |- | ||
|'''Malignant metastasized tumors ''' | |'''Malignant metastasized tumors ''' | ||
|Intraperitoneal seedings extending locally | | | ||
Metastasized tumors give appearance of multiple small nodular masses in intestinal serosa, mesentery and omentum | * Intraperitoneal seedings extending locally | ||
* Metastasized tumors give appearance of multiple small nodular masses in intestinal serosa, mesentery and omentum | |||
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Revision as of 16:29, 4 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 is intrinsic mass with a short segment of bowel wall thickening.
CT Scan
- CT is the modality of choice for staging the disease by identifying primary tumor, assessing local, nodal and distant spread.
- CT can help in differenting the small intestinal cancers. Different tumors have different appearance on CT:[1]
- CT scamn can 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 |
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| Gastrointestinal stromal tumors(GISTs) |
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| Lipoma |
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| Malignant metastasized tumors |
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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.