Cancer Diagnosis Based on Blood Test? – Medical Answers

A continuous evolution of modern medicine offers new opportunities for the diagnosis of diseases. Early detection of cancers, in particular, is of paramount importance, as diagnosis in the early stages can significantly improve the chances of recovery. Colorectal and rectal cancers, as well as stomach diseases such as gastric ulcers or stomach cancer, pose serious health problems worldwide.

Traditional diagnostic methods, such as endoscopic and palpation examinations, while effective, can often be invasive and uncomfortable for patients. Therefore, researchers are constantly seeking new methods that allow for the diagnosis of diseases through blood tests or other less burdensome techniques.

The role of blood tests and stool tests in cancer diagnosis is becoming increasingly important. It is crucial for doctors to effectively and quickly identify potential problems, thereby assisting in the development of appropriate treatment plans.

The Role of Tumor Markers in Diagnosis

Tumor markers are specific substances found in the blood, and their elevated levels may indicate the presence of cancer. Examples of such markers include CEA (carcinoembryonic antigen) and AFP (alpha-fetoprotein). However, it is important to note that tumor markers alone are not sufficient for diagnosing cancer, as they do not always show elevated levels in cases of malignancies.

Currently, tumor markers are primarily used to monitor treatment. If a patient has already been diagnosed with a tumor and the marker level decreases during therapy, it indicates the effectiveness of the treatment. Conversely, if the marker level rises, it may indicate a recurrence of the tumor.

In the diagnosis of colorectal and rectal cancer lesions, stool-based tumor marker tests are among the most applicable methods. These tests allow for the early indication of malignant processes without the need for invasive procedures.

Virtual colonoscopy, or computer-assisted colonoscopy, is also a promising alternative that allows us to inflate the colon with air and then obtain detailed images of the intestines during a CT scan. This method significantly reduces the discomfort associated with diagnostic procedures while providing the necessary information for doctors.

The Impact of Helicobacter pylori on Stomach Diseases

The Helicobacter pylori bacterium is a microorganism that lives in the stomach lining and is responsible for various stomach diseases, including gastric ulcers and stomach cancer. This bacterium can cause chronic gastritis, which increases the risk of stomach cancer. It is important to understand that not every stomach tumor is associated with a Helicobacter pylori infection; however, the presence of the bacterium can increase the frequency of certain types of stomach tumors.

A blood test can only determine whether the patient has ever had such an infection, but it cannot assess the current infection status from the blood. However, there is another method that allows for the diagnosis of Helicobacter pylori infection: the breath test. This procedure is painless and helps determine whether the patient is actively infected or not.

Treatment of Helicobacter pylori infection is extremely important, as eliminating the bacterium can reduce the risk of stomach diseases, including stomach cancer. Treatment usually involves a combination of antibiotics and proton pump inhibitors, aimed at destroying the bacterium and protecting the stomach lining.

To maintain gastrointestinal health, regular medical check-ups are recommended, allowing for early diagnosis and appropriate treatment. Additionally, a healthy lifestyle, proper nutrition, and stress management play key roles in the prevention of stomach diseases.