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Would colon cancer show up on a pelvic or abdominal ultrasound test

A 35-year-old member asked:
Dr. Gurmukh Singh
Pathology 50 years experience
May, not reliable: A mass may be detectable, especially if there is large late stage cancer. Ultrasound is not the prefered way to diagnose colon cancer; colonoscopy is... Read More
Dr. Richard Orr
Surgical Oncology 45 years experience
Not usually: The best way to find colon cancer is with a colonoscopy.

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A 37-year-old female asked:
Dr. Phillip Goebel
Emergency Medicine 17 years experience
No: Cancer surveillance is usually done with a CT scan. Ultrasound is unable visualize most of the abdomen effectively. A normal ultrasound would not excl... Read More
A 31-year-old female asked:
Dr. Paul Garrett
Radiology 41 years experience
Not likely colon Ca: Classic colon cancer causes pain via colon obstruction, so in that case, CT would see it. But this would not be expected in a 31 yo w/ occult neg stoo... Read More
A 31-year-old female asked:
Dr. Edgar Mendizabal
Internal Medicine 56 years experience
Last question first: sometimes, if it is large. A colonoscopy is better.
A 28-year-old female asked:
Dr. Rebecca Gliksman
Internal Medicine 39 years experience
Right pelvic pain: Have other GI signs ?, nausea /vomiting? diarrhea? blood in stool? Able to eat? May be GI - gallbladder, diverticulum ( meckels- but that is assoc... Read More
A 39-year-old female asked:
Dr. Carlos Encarnacion
Medical Oncology 36 years experience
Depends: If you mean a regular ct with contrast (and not a virtual colonoscopy), the answer is occasionally. If the cancer is spread, you may see enlarged nod... Read More
A 48-year-old female asked:
Dr. Michael Zadeh
General Surgery 18 years experience
CT Scan Findings: Ct scan is not the best study to detect colon cancer or ulcers. Although a ct scan may show a large sized colon cancer, the sensitivity of this is gre... Read More
A 22-year-old female asked:
Dr. Tonya Knoll
General Practice 22 years experience
Loose stool: At your age colon cancer would be very rare. Abd US and full blood count are not the best tests to screen for colon cancer. A colonoscopy would be t... Read More
A 39-year-old male asked:
Dr. Mark Hoepfner
Surgery 40 years experience
Depends: A ct scan does not evaluate colon cancer very well. If there is "advanced" cancer as you asked, possibly a large colon mass could be seen, or if there... Read More
A 29-year-old member asked:
Dr. Joshua Bleier
Colon and Rectal Surgery 22 years experience
Ct not sensitive: Ct scan is a useful tool for pre operative evaluation and postoperative surveillance, however most colon cances would not be detectable by standard ca... Read More