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Doctor insights on: Pet Colorectal Cancer Diagnosis

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Dr. Lonnie Smith
4 Doctors shared insights

Pet Colorectal Cancer Diagnosis (Overview)

Pet scanning is used for staging of a variety of cancers. Lesions seen on plain scans can be shown to be biologically active of pet scan this then suggests metastatic tumor and stages the disease. If a lesion on plain scan does not "light up" on pet scan, it is assumed to be benign.


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What is the definition or description of: pet colorectal cancer diagnosis?

What is the definition or description of: pet colorectal cancer diagnosis?

diagnose metastasis: Pet scanning is used for staging of a variety of cancers. Lesions seen on plain scans can be shown to be biologically active of pet scan this then suggests metastatic tumor and stages the disease. If a lesion on plain scan does not "light up" on pet scan, it is assumed to be benign. ...Read more

Dr. Lonnie Smith
4 Doctors shared insights

Pet Colorectal Cancer Diagnosis (Overview)

Pet scanning is used for staging of a variety of cancers. Lesions seen on plain scans can be shown to be biologically active of pet scan this then suggests metastatic tumor and stages the disease. If a lesion on plain scan does not "light up" on pet scan, it is assumed to be benign.


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Comparison of diagnosis colorectal cancer between ctscan and barium enema?

Comparison of diagnosis colorectal cancer between ctscan and barium enema?

Depends on size: Can see the blood supply of tumour mass on a cat scan. But small polyps do not show... Be does not see polyps, but does see tumour. Colonoscopy with a perfect prep is the gold standard for large and small. ...Read more

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Living with Skin Cancer (Checklist)

Avoid sun exposure between 10 am and 2 pm
daily
Apply sunscreen
2x day
Wear a hat outdoors on sunny days
daily
See a dermatologist for checkups
2x year
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How fast does colorectal cancer grow?

How fast does colorectal cancer grow?

Depends: Growth rate can depend on several factors.

Here is a good review on colorectal cancer

http://www. Cancer. Net/cancer-types/colorectal-cancer. ...Read more

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Can young person get colorectal cancer?

Can young person get colorectal cancer?

Yes, but uncommon: About 150000 new cases of colon/rectal ca in us/yr. 90% are age 50 and up. + family history, especially of early ca increases risk. Longstanding ibd increases risk. Certain (rare to uncommon) genetic syndromes increase risk. Check your family's history, see your doc. ...Read more

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Managing Pain from Cancer (Checklist)

Ask an oncologist to refer you to a cancer pain specialist
Once
Ask a pain specialist about both interventional and medication options
Once
If you have pancreatic cancer, ask about a celiac plexus block
Once
If you have neuropathy, request a trial of ketamine-based topical creams
Once
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What are common symptoms of colorectal cancer?

What are common symptoms of colorectal cancer?

Blockage, Bleeding: The most common symptoms associated with colon cancer include (cramping) abdominal pain, a change in bowel habits ("pencil-thin stools"), bloody bowel movements, weakness/fatigue, and/or weight loss. The goal, of course, is to diagnose colon cancers before symptoms develop; I advise colonoscopy at age 50, or earlier if there is a family history. ...Read more

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Is the death rate from colorectal cancer rising?

Is the death rate from colorectal cancer rising?

No: But the incidence of rectal cancer in patients under age 40 is rising. ...Read more

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What body systems could colorectal cancer affect?

What body systems could colorectal cancer affect?

It can spread: The common sites of metastases (spread of cancer) are to liver and lungs. Sometimes it recurs in the abdominal cavity causing bowel obstruction or ascites (fluid build up in the belly? Bone metastasis and brain metastases are much less common sites of spread. Growing tumors will cause compromise in the functions of the organs. ...Read more

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What are common early symptoms of colorectal cancer?

What are common early symptoms of colorectal cancer?

Often "silent": Unfortunately, colon cancers may develop "under the radar" for quite some time before symptoms occur. The earliest sign is usually anemia caused by a slowly bleeding tumor. As the cancer grows, it may block the colon causing cramping pain, bloating, and/or pencil-thin stools. The gold standard for diagnosing colorectal cancer is screening colonoscopy at age 50, or earlier with a family history. ...Read more

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Is my diet involved in colorectal cancer development?

Is my diet involved in colorectal cancer development?

It May Be: Studies have shown that diets with a high intake of fruits, vegetables, and whole grains are associated with a lower risk of colon cancer. In contrast, high red-meat diets are associated with an increased risk. ...Read more

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What is the prognosis of colorectal cancer primary stage?

Good: Early stage a colon cancer has very good long term survival over 90% with surgery alone. Even other stages can have good results with combined surgery and chemotherapy. ...Read more

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Is there anything I should do to reduce my risk for colorectal cancer?

Is there anything I should do to reduce my risk for colorectal cancer?

Yes: Everybody age 50 years or older should have a screening colonoscopy. Next, find out your own family history of colorectal cancer. Depending who is affected, you may need to get a colonoscopy before age 50. Finally, if you are having any change in your bowel habits, or blood in your stools, you may need a thorough medical examination with your doctor for colorectal cancer. ...Read more

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Is colorectal cancer always fatal?

No: Most early colon cancers have a very high success rate of long term survival rate. More advanced cancers that spread to other sites do not have the same success rates, but can still live for years. ...Read more

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What is the pathology of colorectal cancer?

What is the pathology of colorectal cancer?

Adenocarcinoma: Colorectal cancer is usually adenocarcinoma that developed from a underlying polyp. For details on staging visit http://www. Cap. Org/apps/cap. Portal? _nfpb=true&cntvwrptlt_actionoverride=%2fportlets%2fcontentviewer%2fshow&_windowlabel=cntvwrptlt&cntvwrptlt%7bactionform. Contentreference%7d=committees%2fcancer%2fcancer_protocols%2fprotocols_index. Html&_state=maximized&_pagelabel=cntvwr. ...Read more

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Who should get screened for colorectal cancer?

Everyone, most >50: Most people are considered "average risk" for colorectal cancer, and should begin screening @ 50, typically with a colonoscopy. Some people at increased risk, such as those with inflammatory bowel disease or a family history of colorectal cancer. These people may need screening at a younger age-generally 10 yrs earlier than the age when their relative got colon cancer. Talk w/ your doctor. ...Read more

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Why should I get screened for colorectal cancer?

Because its common: Colorectal cancer is the second most common cancer in the United States. ...Read more

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What are the signs and symptoms of colorectal cancer?

What are the signs and symptoms of colorectal cancer?

None: Usually there are no symptoms. Later can develop intestinal or rectal bleeding, anemia, weight loss, intestinal blockage, change in bowel movements, etc. ...Read more

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What can be done about a stoma and colorectal cancer?

What can be done about a stoma and colorectal cancer?

May be temporary: Most stomas that are created following colorectal surgery are temporary. The permanent colostomies are performed when the tumor involves rectal sphincter and an APR is performed. Otherwise the diversion performed is to protect an anastomosis and can be closed several months later when the suture line has healed. A colostomy is also performed when there is bowel obstruction and diversion needed. ...Read more

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Is it possible to have colorectal cancer without having polyps?

Possible: For a small percentage of colon cancers caused by lynch syndrome (also known as hnpcc - hereditary nonpolyposis colon cancer), there is an absence of polyps. ...Read more

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What methods are used to screen a person for colorectal cancer?

What methods are used to screen a person for colorectal cancer?

History: Get personal and family history of colon cancer. Ask if history of colitis, familial polyposis, ibs, lunch syndrome, rectal bleeding, obesity, age over 44yo, rectal mass., un explained anemia needs to be evaluated. Colonoscopy is by far the best way to screen for colon cancer. ...Read more

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How likely is it that I have colorectal cancer if my dad had it?

How likely is it that I have colorectal cancer if my dad had it?

More likely.: Most colon cancer is from adenomatous polyps. Hereditary nonpolyposis colon cancer comes from hmsh2 and hmlh1 genes on chromosomes 2 and 3 respectively which repair dna. These have mutations that can lead to colon and other cancers. Diagnosis needs three or more relatives with colon cancer, with one being a first degree relative, >1 case before 50, and >=2 generations. ...Read more

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How many people are being screened for colorectal cancer each year?

How many people are being screened for colorectal cancer each year?

~1.6 million/year: The national cancer institute estimates that about 1.6 million screening colonoscopies are performed each year in the United States. Colonoscopy is not the only way to screen for colorectal cancer, but collecting these statistics on a national level is much more difficult. The other methods include sigmoidoscopy, fecal occult blood testing, and ct-based screening tests. ...Read more

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Is there any way to help prevent the return of my colorectal cancer?

Is there any way to help prevent the return of my colorectal cancer?

4-Tiered Strategy: Surveillance: at the advice of your gastroenterologist, schedule routine colonoscopies; healthy habits: follow a diet high in veggies, fruits, and whole-grains, try to limit red meat and alcohol, exercise regularly; chemoprevention: talk to your oncologist about taking folate (folic acid) supplements and/or nsaids; genetic testing: if you have many relatives with colon ca, you may be a candidate for testing. ...Read more

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What diet should I follow to prevent colorectal cancer from occurring?

What diet should I follow to prevent colorectal cancer from occurring?

Eat your veggies: Population studies show groups that eat high fiber, grains, fruit, veggies, legumes have lower rates. Calcium foods (no/low fat dairy), may help. Low intake meat, especially processed meats may help. Fiber supplements are less helpful than fiber foods. Low (sat) fat, high fiber may be a good combo.
Dash diet (dietary approach to stop hypertension): easy, tasty, healthy. Find it online. ...Read more

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What increases my risk for metastatic or recurrent colorectal cancer at 85?

What increases my risk for metastatic or recurrent colorectal cancer at 85?

Lack of surveillance: Patients who have had previous colorectal cancers have risk of recurrence or metastasis based on their original diagnosis and treatment. Lack of careful follow up increases your risk of missing recurrence or metastasis early when it can be managed aggressively. Careful surveillance is the best way to catch anything early. ...Read more

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Is a family history of colorectal cancer a 100% risk factor for developing it?

Is a family history of colorectal cancer a 100% risk factor for developing it?

Depends: Inherited forms of colon cancer, e.g., apc and hnpcc have a near 100% risk. Having a family history, without defective genes, increases the risk but no where near 100%. ...Read more

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I have a family history of colorectal cancer. When should I begin testing and how often?

I have a family history of colorectal cancer. When should I begin testing and how often?

Depends on family: You should see a clinical geneticist to document your family history of colon cancer and look for associated symptoms (e.g., dark skin, eye, tooth changes in gardner syndrome). The family pattern (e.g., autosomal dominant or multifactorial) and type of colon cancer (usual older age or early onset as cancer syndrome) will guide testing (blood sent to labs such as myriad genetics). ...Read more

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For a man who had colorectal cancer 3 years ago, what would be a worrisome value on a CEA test?

For a man who had colorectal cancer 3 years ago, what would be a worrisome value on a CEA test?

D/w your oncologist: Cea's sensitivity and specificity are not 100%- meaning many other conditions can affect the level of CEA besides colon cancer. The level is also different in a smoker and non smoker. The trend over time would be more important than just one number at certain time. In general for non smoker the level is less than 5 and for smoker could go up to 7.5. Please discuss with your oncologist however. ...Read more

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Possibility of colorectal cancer in younger people. Which persons should get colonoscopy <50 years?

Possibility of colorectal cancer in younger people. Which persons should get colonoscopy <50 years?

Colonoscopy <50 y o: There are several nationally-recognized colonoscopy screening guidelines. Most agree the following patients under 50 year old should undergo colonoscopy:1) afro-american males at age 45; 2) familial syndromes that predispose to early colon ca (fap, lynch syndromes, etc.); 3) inflammatory bowel of longstanding; 4) history of colon ca or adenomatous polyps at young age; 5) other select settings. ...Read more

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What are the chances of colorectal cancer at age 37? I have hemrroids for the first time in my life.

Low: Fairly low, unless you have a first degree relative with colon cancer early in life. If you develop symptoms that are unusual for simple hemorrhoids, you should have additional testing. As always, if things don't go the way they're supposed to, go back to your doctor for the next step in the plan. ...Read more

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How long for colorectal cancer to develop? If polyps aren’t removed and they keep growing, how long does it take before they turn into cancer?

Years usually: There are different types of polyps and some are more aggressive than others. But usually these take years (2-5 years, some will say 10 years) to grow to cancer. There are more aggressive types that can develop in a year or less but fortunately they are the rarity. ...Read more

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I don't have a family history of cancer but I was worried about whether I have colorectal cancer. So what are my chances of getting colorectal cancer?

I don't have a family history of cancer but I was worried about whether I have colorectal cancer. So what are my chances of getting colorectal cancer?

Under age: 50, about 4/100, 000. After age 50, it goes up sharply. Unless you have ulcerative colitis, multiple polyps, or any condition that increases your chances, you don't need to have a conlonscopy until age 50. ...Read more

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Is stage 4 colorectal cancer curable?

Is stage 4 colorectal cancer curable?

Majority will be No: When the cancer has spread to other organ beyond the primary organ-metastatic disease- or stage 4-, majority, it is an incurable disease. In a very selected case, when the metastatic disease is very limited - 1 or 2- only in the liver or only in the lung- and no other disease anywhere else and if surgery can be done to remove completely, attemp to cure the cancer can be done with chemo & surgery. ...Read more

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What are my treatment options for colorectal cancer?

Depends on stage.: Surgical resection is the primary treatment for most cases. However, the stage (extent of growth and spread) is very important to deciding on the treatment. If there is spread to other organs that cannot be removed, chemotherapy would be the primary treatment unless continued bleeding or obstruction prompt removal of the primary tumor. Radiation is important for rectal cancer that has not spread. ...Read more

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What are the tests for hereditary colorectal cancer?

What are the tests for hereditary colorectal cancer?

Usual: Se as for non hereditary, a colonoscopy is best. If you are high risk it is usually recommended tat the testing start earlier than age 50, the specific age depending on the circumstances. ...Read more

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Colon cancer or colorectal cancer, what's the difference?

Colon cancer or colorectal cancer, what's the difference?

Location: Cancers that arise from the epithelium of the large intestine are similar in most ways whether they are in the colon or rectum. Discussions of "colon cancer" unspecified usually mean "colorectal" unless stated otherwise. Usage, including by me, is often sloppy. ...Read more

Dr. Herbert Hoover
236 Doctors shared insights

Colorectal Cancer (Definition)

Colorectal cancer is cancer of the colon or rectum. The cells lining the colon or rectum become abnormal and grow uncontrollably. They start as polyps. Symptoms include blood in the stool, constipation, loss of appetite, and weight loss. This cancer can be prevented through early screening, if a polyp is detected during a colonoscopy and excised. Additionally, a high fiber diet with plenty of water and a ...Read more


Dr. Barry Rosen
4,344 Doctors shared insights

Cancer (Definition)

Cancer is a group of diseases that is characterized by uncontrolled cell growth leading to invasion of surrounding tissues that spread to other parts of the body. Cancer can begin anywhere in the body and is usually related to one or more genetic mutations that allow normal cells to become malignant by interfering with internal cellular control mechanisms, such as programmed cell death or by preventing ...Read more