Colorectal cancer ultrasound: Difference between revisions
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==Overview== | ==Overview== | ||
Abdominal ultrasound can be used to look for tumors in the liver, gallbladder, pancreas, or elsewhere in your abdomen, but it can't look for colorectal cancer. The two special types of ultrasound exams that can be performed to evaluate colon and rectal cancers are endorectal ultrasound and intraoperative ultrasound. | Abdominal ultrasound can be used to look for [[tumors]] in the [[liver]], [[gallbladder]], [[pancreas]], or elsewhere in your [[abdomen]], but it can't look for colorectal cancer. The two special types of ultrasound exams that can be performed to evaluate [[colon]] and rectal cancers are endorectal ultrasound and [[Ultrasound|intraoperative ultrasound]]. | ||
==Ultrasound== | ==Ultrasound== | ||
Abdominal ultrasound can be used to look for tumors in the liver, gallbladder, pancreas, or elsewhere in your abdomen, but it can't look for colorectal cancer. Findings on an ultrasound include: | Abdominal ultrasound can be used to look for [[tumors]] in the [[liver]], [[gallbladder]], [[pancreas]], or elsewhere in your [[abdomen]], but it can't look for colorectal cancer. Findings on an ultrasound include: | ||
*[[Abdominal]] mass | *[[Abdominal]] mass | ||
*Intra-abdominal bleeding | *Intra-abdominal bleeding | ||
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*Hepatic [[metastasis]] | *Hepatic [[metastasis]] | ||
Two special types of ultrasound exams can be performed to evaluate colon and rectal cancers | Two special types of ultrasound exams can be performed to evaluate colon and rectal cancers: | ||
'''Endorectal ultrasound''' | '''Endorectal ultrasound''' | ||
This test uses a special transducer that is inserted directly into the rectum. It is used to see how far through the rectal wall a cancer may have penetrated and whether it has spread to nearby organs or tissues such as lymph nodes. | This test uses a special transducer that is inserted directly into the rectum. It is used to see how far through the rectal wall a cancer may have penetrated and whether it has spread to nearby organs or tissues such as lymph nodes. | ||
Revision as of 14:18, 18 December 2017
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Colorectal cancer Microchapters |
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Diagnosis |
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Treatment |
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Case Studies |
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Colorectal cancer ultrasound On the Web |
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American Roentgen Ray Society Images of Colorectal cancer ultrasound |
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Risk calculators and risk factors for Colorectal cancer ultrasound |
To view the ultrasound of familial adenomatous polyposis (FAP), click here
To view the ultrasound of hereditary nonpolyposis colorectal cancer (HNPCC), click here
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Saarah T. Alkhairy, M.D.
Overview
Abdominal ultrasound can be used to look for tumors in the liver, gallbladder, pancreas, or elsewhere in your abdomen, but it can't look for colorectal cancer. The two special types of ultrasound exams that can be performed to evaluate colon and rectal cancers are endorectal ultrasound and intraoperative ultrasound.
Ultrasound
Abdominal ultrasound can be used to look for tumors in the liver, gallbladder, pancreas, or elsewhere in your abdomen, but it can't look for colorectal cancer. Findings on an ultrasound include:
- Abdominal mass
- Intra-abdominal bleeding
- Peritoneal metastasis
- Hepatic metastasis
Two special types of ultrasound exams can be performed to evaluate colon and rectal cancers:
Endorectal ultrasound
This test uses a special transducer that is inserted directly into the rectum. It is used to see how far through the rectal wall a cancer may have penetrated and whether it has spread to nearby organs or tissues such as lymph nodes.
Intraoperative ultrasound
This exam is done during surgery after the abdominal cavity has been opened. The transducer can be placed against the surface of the liver, making this test very useful for detecting the spread of colorectal cancer to the liver.