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Colorectal cancer under 40

The benefits are certain in some cases: life years gained for those with curable disease, avoidance of morbidity, reassurance that the disease is at a very early stage, avoiding expenses of treatment for advanced cancers and extra years of productivity. But screening tests also have disadvantages, so a balanced decision must be made, with the help of clinical randomized trials. In this article I will present the current methods for screening accepted for general population and particular screening reserved for persons at high risk.

Although in the first case the benefit is proven, the use of these methods in practice varies largely due to lack of resources and well designed health programs. Beneficiile sunt evidente în anumite cazuri: prelungirea su­pravieţuieii la cei cu boală curabilă, scăderea morbidităţii, asigurarea pacientului că boala se află în stadiu incipient, evitarea costurilor crescute asociate cu tratamentul for­melor avansate de boală şi creşterea numărului de ani de productivitate.

Dar testele de screening au şi dezavantaje, aşa că un echilibru trebuie găsit, colorectal cancer under 40 mai importantă con­tribuţie în acest sens fiind dată de testele clinice ran­do­mizate. În acest articol voi prezenta metodele curente acceptate pentru populaţia generală şi cele rezervate colorectal cancer under 40 persoanele cu risc înalt.

Deşi în primul caz beneficiile sunt dovedite, utilizarea lor în practică variază larg din cauza lipsei de resurse şi a lipsei implementării programelor de sănătate publică. Checking for cancer or for conditions that may become cancer in people who have no symptoms is called scre­ening.

It is usually assimilated with secondary prevention and involves the use of diagnostic tests in an apparently healthy population. Many people wrongly mistake screening for prevention 2. There are several forms of prevention: Primary colorectal cancer under 40 - aims to prevent disease before it ever occurs. This is done by preventing exposures to hazards that cause the disease, altering unhealthy or unsafe behaviors that can lead to disease, and increasing resistance to disease if colorectal cancer under 40 occurs.

One example is vaccination 3. Secondary level of prevention - parazitii giardia of precancerous or cancerous lesions in early stages, when no clinical expression is present, which leads to avoidance of developing invasive or metastatic disease.

It includes screening asymptomatic patient and early detection diagnose in phase colorectal cancer under 40 minimal symptoms of disease. It also applies to advanced disease which is asymptomatic or without complications at time being. The fourth level of prevention - according to some authors, could be considered prevention of suffering from side effects of treatment and complications, pain and maintaining the quality of life of the patients 4.

Screening can be proposed for a certain cancer in the following situations: if it colorectal cancer under 40 frequent, has a long preclinical evolution, is ce viermi necesită dulce with increased mortality and morbidity, long preclinical non-metastasis faze and if early detection offers access to treatment that improves outcomes.

It is important to remind that screening tests can have potential harms as well as benefits. Some screening tests may have side effects, cause discomfort or severe complications.

Screening tests can have false-positive results. Screening tests can have false-negative results. Overdiagnosis is possible. This happens when a screening test correctly shows that a person has cancer, but the cancer colorectal cancer under 40 slow growing and would not have harmed that person in his or her lifetime.

This can lead to overtreatment 5. Screening tests that have been shown to reduce cancer deaths Colonoscopy, sigmoidoscopy, and fecal occult blood tests FOBTs Colon cancer is the third most frequent cancer in both men and women. Although usually met in persons colorectal cancer under 40 50 years, there is a trend o increase incidence among young adults.

The major risk factors are family history and old colorectal cancer under 40, other conditions being associated with greater probability of cancer alcohol, smoking, lack of physical exercise, poor fiber papillomavirus humain mycose and rich in red processed meat.

Another risk is found in people with ulcerative colitis and Crohn disease 6. Genetic consult, thorough history till second degree relatives and IHC imunohistochemical and genetic testing should be considered in those with HNPCC hereditary nonpolyposis colorectal cancer - like in Lynch syndrome with its variant -  Turcot patients with MMR - mismatch repair gene cancer ovarian signs and brain tumoursand Muir-Torre syndrome MTS - cutaneous gland tumours like keratoacanthomas and sebaceous  tumors associated with colon, breast, and genitourinary tract neoplasia.

Guaiac FOBT: is used to detect a part of the blood protein hemoglobin. It requires avoidance of certain food before testing red meat.

FIT: implies use of antibodies to detect human hemoglobin specifically. No dietary restrictions are needed. Studies suggest testing every year beginning with the age of 50 until 80 years; it helps reduce death from CCR by up to 33 percent 8,9. Sigmoidoscopy has the advantage of visualizing the rectum and sigmoid colon and being able to biopsy suspect lesions. Preparation for the test is less demanding than that needed for colonoscopy. Trials have shown an up to 70 percent lowered risk of death from cancer of sigmoid and rectum using this method.

A randomized study showed that just one sigmoidoscopy done between 55 and 64 years old can offer an important reduction in CCR incidence and mortality. The usual recommendation is for the test to be done every 5 years in conjunction with FOBT every 3 years Colonoscopy examines the whole colon and rectum.

A form of sedation is recommended for patient comfort. A more complex cleaning of the colon is needed before the investigation. It has the advantage of biopsy, too. Death from CCR is reduced by about 70 percent. The usual recommendation of testing is at 10 years, as long as other tests are negative Double-contrast barium enema : less sensitive than colonoscopy for detecting small polyps and cancers; has an utility for those who cannot undergo colonoscopy.

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New screening tests are under investigation: stool DNA testing trials showed a high rate of false positivesvirtual colonoscopy and capsule endoscopy; they should not yet be used for screening. It had two arms: one used low dose helical CT and the other, standard chest X ray. On average over the three rounds of screening exams, The results showed that using the CT screening t­here is a 15 to 20 percent lower risk of dying from lung can­cer when compared with chest X ray.

The adenocarcinomas and squamous types were the most frequently detected, while small cell lung cancer, known for its agresivity, colorectal cancer under 40 infrequently found on either CT or chest X ray Mammography This screening test for breast cancer has been shown to reduce mortality from the disease in women aged 40 to 74, especially in those aged 50 or older.

  • Posted by: Medisprof March 13, pm The colorectal cancer appears by a malign transformation, uncontrolled, carcinogenic of the mucosal epithelial cells which cover the surfaces of the rectum and the colon.
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To date, no differences are between classic film mammography and the digital one. Women with breast implants should continue to have mammograms.

A special technique called implant displacement views may be used.

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Modern mammograms require a very colorectal cancer under 40 amount of radiation. Usually, the risk of exposing to radiation is surpassed by the benefits of the test, but total dose of radiation after several tests must be kept in notice. This test has the advantage of the possibility of being installed in mobile facilities. A new technique - 3D mammography tomosynthesis - has not been compared with 2D mammography in randomized studies, and cannot yet be recommended for screening purpose.

Pap colorectal cancer under 40 and Human Papilloma Virus HPV testing These tests reduce the incidence of cervical cancer because they allow abnormal cells to be identified and treated before they transform into cancer. They also help reduce death from the disease. It is generally recommended to begin at the age of 21 or 3 years after becoming sexually active and to end at the age of 65, as long as recent results have been normal. There are 12 high-risk HPV types, most cancers being linked to subtypes 16 and Although the infection is very common, in most cases the immune system will suppress it in 1 to 2 years; but if the infections persists, the cellular changes can evolve to precancerous lesions, which finally turn into cancer.

The process can take from 10 to 20 years. Results from Pap tests are reported using the Bethesda System.

Cancer de colon hombres

If results show severe abnormalities, further tests are needed like colposcopy. A newer version of Pap test liquid based one offers the advantage of simultaneous testing for HPV from same specimen.

It also reduces the possibility of unsatisfactory specimen and is considered similar to cytology based test in terms of detecting cellular abnormalities. Women with certain risk factors may need to have more frequent screening or to continue screening beyond the age of These risk factors include being infected with the human immunodeficiency virus HIVbeing immunosuppressed, having been exposed to diethylstilbestrol before birth, and having been treated for a precancerous cervical lesion or cervical cancer.

Women who have had a hysterectomy surgery to remove the uterus and cervix do not need to have cervical screening, unless the hysterectomy was done to treat a precancerous cervical lesion or cervical cancer. For women aged 30 and older, Pap and HPV co-testing is less likely to miss an abnormality colorectal cancer under 40 Pap testing alone. A good option in this case, sustained by clinical trials, is to lengthen the screening interval to 5 years, still allowing the detection and treatment in time.

The ATHENA trial, which included 47, women, showed that HPV testing performed better than Pap testing at identifying women colorectal cancer under 40 risk of developing high risk cervical cell abnormalities.

Other studies also confirm this hypothesis. The risk to develop cervical cancer after negative HPV test is extremely low. The testing alone is regarded as a future direction in screening for cervical cancer, and is expected to be implemented soon in practice guidelines 15,16, Also, vaccines for HPV are giving good results and should be encouraged before becoming sexually active Other screening tests - can be used in certain high risk situations, in selected patients PSA test The test is often done in association with a digital rectal exam, and it was thought to be able to detect cancer at an early stage.

Expert groups no longer recommend routine testing for most men because trials have shown little to no effect on prostate cancer death and the screening can lead to overdiagnosis and overtreatment If a woman or her doctor notices a lump, un­usual discharge or other modification in the breast, it is important to have additional tests. The best moment for breast exam is 5 days after the end of the period.

Other methods under evaluation are ultrasonographyCT scansPET scansscintimammographyelastographythermographyductal lavageand others which need to prove their benefit in trials. The use of mammography is limited to advanced age, as there are evidence suggesting that BRCA carriers are more susceptible to breast cancer induction by X-ray damage It has not been shown to reduce deaths from cancer.

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Skin exams Regular examination of skin done by doctor or high risk skin cancer patient patients colorectal cancer under 40 not been proven to reduce the risk of dying by skin cancer and may lead to overtreatment. However, people should be aware of changes in their skin, such as the apparition of a new lesion or change in a existing one, and report it to their doctor. Alpha-fetoprotein blood test The test is used in selected, high-risk cases mostly patients with hepatitis B and C, heavy alcohol consumption, cirrhosis, exposure to aflatoxinsalong with liver ultrasound to try to find liver cancer in early stage.

Colorectal cancer under 50 Prevention of Colorectal Cancer for Those Under 50 papillomavirus hpv Although not-fulfilling all "the Amsterdam  offers  a homogenous but  apparently rigid  frame,  considering  criteria"  for  eligibility  in  the  HNPCC  group,  the  patients  current  molecular  genetics  research. Thus,  more  and  more  with colo-rectal cancer and positive family history showed  patients  that  do  not  fulfil  entirely  those  criteria  and  an  morphoclinical  features  which  suggested  poor  prognosis  important number of patients with sporadic cancers are found  compared to  those with negative family history. A  comparative  analysis  of the  morphoclinical  Key  words  features  in  non-polyposis  colo-rectal  cancer  patients  with  Hereditary  colo-rectal  cancer  -  Amsterdam  Criteria  - positive  family  histories  which  fulfil  entirely  or  partially  prognosis  "the  Amsterdam  criteria"  versus  the  patients  with  sporadic  non-polyposis  colorectal  cancers.

CA test The test is often done in association with transvaginal ultrasound, and has been tested to be included in screening especially for women with high risk of the disease. It has not been shown to be an effective screening test.

Its best use remains evaluating the recurrence in women previously diagnosed with the cancerous disease Although many methods of screening have been tested and several are still under evaluation, the ideal test for certain cancer sites is still waited for. A great enthusiasm was seen initially with the apparition of tumor markers like PSA, CEA, CACA regarding their use in screening - unfortunately not confirmed by clinical trials.

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The desiderate for an ideal tumor marker for every site, available for testing on blood samples of colorectal cancer under 40 persons, still remains an idea not yet feasible. Also, more precise, with low-radiation dose and accessible imagistic studies, that allow detection of cancer or its precursors in early stage, are urgently needed. That is why, using medically proven forms of primary prevention like education and vaccines and secondary prevention screeningin well organized national health colorectal cancer under 40, along with investigating new accessible methods for testing, should be our major interest and concern.

Maximising benefit and minimising harm of screening.

About the colorectal cancer, prevention and risk factors, with Dr. Paula Pruteanu

BMJ Clinical research ed. Miron L. Terapia cancerului: opţiuni bazate pe dovezi, Editura Institutul European, Iaşi American Cancer Society. Atlanta: American Cancer Society; Preventive Services Task Force. Screening for colorectal cancer: U. Preventive Services Task Force recommendation statement. Annals of  Internal Medicine ; papillomavirus resultat frottis Diagnostic accuracy of faecal occult blood tests used colorectal cancer under 40 screening for colorectal cancer: A systematic review.

Journal of Medical Screening ; 14 3 Noninvasive testing for colorectal cancer: A review. American Journal of Gastroenterology ; 6 Once-only flexible sigmoidoscopy screening in prevention of colorectal cancer: a multicentre randomised controlled trial.

Lancet ; Ransohoff DF. How much does colonoscopy reduce colon cancer mortality? Exit Disclaimer Annals of Internal Medicine Online June 29, Effects of mammography screening under different screening schedules: model estimates of potential benefits and harms.

Annals of Internal Medicine ; 10 Diagnostic performance of digital versus film mammography for breast-cancer screening. New England Journal of Medicine ; 17 Cervical cancer risk for women undergoing concurrent testing colorectal cancer under 40 human papillomavirus and cervical cytology: A population-based study in routine clinical practice.