Colorectal cancer ultrasound: Difference between revisions
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==Ultrasound== | ==Ultrasound== | ||
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 tumors of the colon. Findings on an ultrasound include: | ||
* Abdominal mass | * Abdominal mass | ||
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* Liver [[metastasis]] | * Liver [[metastasis]] | ||
Two special types of ultrasound exams are sometimes used 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 surgeon has opened the abdominal cavity. 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. | |||
==References== | ==References== | ||
{{Reflist|2}} | {{Reflist|2}} |
Revision as of 13:12, 15 July 2015
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] ; Associate Editor(s)-in-Chief: Raviteja Guddeti, M.B.B.S. [2]
Overview
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 tumors of the colon. Findings on an ultrasound include:
- Abdominal mass
- Intra-abdominal bleeding
- Peritoneal metastasis
- Liver metastasis
Two special types of ultrasound exams are sometimes used 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 surgeon has opened the abdominal cavity. 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.