[Qualifications for the validity of screening for occult fecal blood in the early diagnosis of colorectal cancer].
The discovery of a polyp is nowadays unanimously considered a harbinger of colorectal cancer. Bleeding is one of the most meaningful symptoms of this intestine pathology. Occult blood tests in stool as a screening technique for colorectal cancer can be considered an effective diagnostic means to prevent and detect this kind of neoplasm at an early, curable stage. There are two kinds of commercially available tests for detection of occult fecal blood loss: Guaiac tests and immunologic tests. Those people who are responsible for these screenings should have at disposal well-working diagnostic instruments and experienced physicians. Only on these conditions patients with positive results on screening tests can undergo an effective second level diagnostic surveillance. In this way substantial results can be obtained by means of this kind of secondary prevention.
Savioli
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D015179:Colorectal Neoplasms / Q000517:prevention & control*; D006801:Humans; D008403:Mass Screening; D009780:Occult Blood; D015203:Reproducibility of Results
I requisisti per la validità dello screening del sangue occulto fecale come diagnosi precoce del cancro colorettale.