Small intestine cancer CT: Difference between revisions
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==Overview== | ==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. | 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. | ||
Revision as of 16:28, 4 January 2019
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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 | Ulcerative lesions, nodular lesions and annular lesions |
| Carcinoid tumors | Poorly defined homogenous mass displacing intestinal loops
Calcification and desmoplastic reaction is a very specific finding of Carcinoid tumors on CT |
| Non-Hodgkin lymphoma | Bulky mass on CT
Lymphoma is associated with significant dilation of the lumen of intestine |
| Gastrointestinal stromal tumors(GISTs) | Intraluminal, subserosal or submucosal homogeneous masses with sharply defined borders
Calcifications |
| Lipoma | Intraluminal homogeneous mass, well-circumscribed and with some fat attenuation |
| Malignant metastasized tumors | Intraperitoneal seedings extending locally
Metastasized tumors give appearance of multiple small nodular masses in intestinal serosa, mesentery and omentum. |
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.