Methods of instrumental diagnostics with bowel cancer


  • Based on what the doctor makes the diagnosis?
  • sigmoidoscopy
  • barium enema
  • Colonoscopy
  • Ultrasound scan
  • CT scan (computed tomography)

  • Based on what the doctor makes the diagnosis?

    Methods of instrumental diagnostics with bowel cancerMost people start with the fact that the visityour family doctor (GP), which will examine you and prescribe the passage of the necessary tests or X-ray examination. Your doctor may also find it necessary to refer you to this end, to the clinic for consultation and treatment by a specialist.

    Before proceeding to the objectiveexamination, the clinician familiar with your medical history. Probably, it will start with a rectal examination. To do this, put on a rubber glove, he will introduce you into the anus finger to feel for any lump or swelling, if any. This procedure is somewhat uncomfortable, but not painful.

    To check your overall healthyou are likely to make a blood test and chest X-ray. You may also be asked to bring a stool sample for the study on the subject content in the blood.

    The following studies are used for the diagnosis of colorectal cancer.


    This test allows the doctor to view the inside of the rectum or colon It can be performed either outpatient or in a hospital setting.

    To carry out the test you will be asked to lie down on one side,"Curled up" and the doctor will introduce you gently into the anus thin tube. The tube is connected with a small manual pump by means of which air is pumped into the intestine. Rectoscopy - it is a short tube, designed for colon length; rectoromanoscope - a tube of considerable length, which can undergo further explore and allow for almost the entire colon. The presence of the lighting device inside the tube allows the doctor to detect any portion of intestine with a deviation from the norm. If necessary, you can safely take a small sample of cells (biopsy) for microscopic examination.

    Conducting tests rectoscopy or sigmoidoscopy may cause some discomfort, but you can go home immediately after any of them.

    barium enema

    This is a special X-ray of the colon and rectum. It is carried out in the hospital X-ray room.

    For its proper conduct is essential thatintestine was emptied to obtain a clear picture. On the eve of the appointed day for the test, you will need to take a laxative and to drink plenty of fluids.

    On the morning of the day of the test you will not be ablenothing to eat or drink. In various hospitals rules of preparation for this test may be slightly different from each other, but your doctor will give you instructions that you must follow.

    Just before the test to ensure the fullbowel cleansing, you may make the bowel lavage. To do this, you will be asked to lie on its side and gently introduce you to a tube into the anus and then through a tube will enter the water. You will be asked to hold a water for a few minutes, after which you will be able to go to the toilet.

    To put a barium enemaobtaining double contrast, in the same manner as in the intestinal lavage, the anus of the patient is administered a mixture of air and barium, which ensures a clear image on the captured images. It is important that a delay until the mixture until all required to be made x-rays. After that the doctor can observe the passage of barium through the bowel X-ray screen, which will allow it to detect any deviation from the norm, if any.

    This test is quite tiring and can cause some discomfort, so be nice to someone escort you home, if possible.

    Within two or three days after that test you,probably you will notice that your stool became white. It is because of your body goes barium, therefore no cause for concern. In addition, the barium can cause constipation, so it is possible that within a few days after the test you have to take a laxative.


    If the doctor finds it necessary to examine the coloninternally over its entire length, it will test called colonoscopy. This test is usually performed on an outpatient basis, and it lasts approximately one hour.

    Methods of instrumental diagnostics with bowel cancerFor colonoscopy intestines must becompletely emptied. This means that within a few days before the test must be carefully observe a diet. Preparation is similar to that applied prior to the test "barium enema". Appropriate instructions will be given to you.

    Before the test, you will probably give softsedative in order to make it easier to relax. You will then take a comfortable supine position on the side of caution and the doctor will introduce you to the anus flexible tube (colonoscope). Since this tube is made of a flexible fiber, it easily overcomes the colon folds, whereby it is possible to investigate the entire length. Provided inside the lamp colonoscope allows the doctor to detect any station with a deviation from the norm, and any swelling.

    During the test, you can take pictures and producesampling the inside of the colon (biopsy). Colonoscopy can cause some discomfort, but a sedative will help you feel more relaxed.

    Most patients are ready to go home two hours after the test. But not bad also, if you are with someone else arrange to have brought you home.

    If, based on the results of tests conductedit is determined that you have colon cancer, your doctor may find it necessary to carry out further tests in order to determine whether the given tumor metastasis or not.

    Additional tests may also help the doctor decide on the most expedient for you type of treatment.

    Ultrasound scan

    For this test, the sound waves are used in order to obtain an image of the liver and the inside of the abdominal cavity. This test is performed in the office with a scanning device.

    Once you have taken a comfortable position lyingon the back, on the stomach surface, a layer of gel. Then, on this site spend a small device resembling a microphone that generates ultrasonic waves. The computer converts the sounds reflected in the screen image.

    Ultrasound can be used to determine the size and location of the cancer. This study is painless, and it only takes a few minutes.

    CT scan (computed tomography)

    CT Scan - a typeX-ray examination. Make a certain number of shots portion and enter them into a computer in order to get a detailed picture of the inner side of the body.

    On the day of scanning at least4 hours before the scheduled time, you can not have anything to eat or drink. A few hours before the scan you will be given to drink a special liquid, which appears under the influence of X-rays, and then - once again directly into the X-ray room.

    Before the procedure the same scanthe liquid will enter you into the anus by a small tube. While this may cause some discomfort, but thanks to this it is possible to provide a clear image.

    After the patient has taken a comfortable position,You can start scanning. By itself, this test does not cause pain, but hold it for 30-40 minutes, you must lie very still. Immediately upon its completion, most patients can go home.

    The result of the tests will be ready ina few days, and in front of your home care, you will be appointed the next day visiting the doctor. Obviously, this waiting period will not be easy for you, well, that during this time you befriended a close friend or relative.

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