Onology
Gastric cancer
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Time limit: 50 minutes
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Question 1
Which of the following is a common early symptom of gastric cancer?
Explanation
Weight loss can be a common early symptom of gastric cancer due to appetite loss or other factors.
Question 2
What type of cancer is gastric cancer?
Explanation
Gastric cancer specifically refers to cancer that forms in the lining of the stomach.
Question 3
Where does gastric cancer develop?
Explanation
Gastric cancer develops in the stomach, specifically in its lining.
Question 4
Which of the following factors is often associated with an increased risk of gastric cancer?
Explanation
Smoking is a well-known risk factor that can increase the chance of developing gastric cancer.
Question 5
What is the primary method for confirming a diagnosis of gastric cancer?
Explanation
An endoscopy allows direct visualization and biopsy of the stomach lining, which is essential for diagnosing gastric cancer.
Question 6
A patient is diagnosed with gastric cancer. The oncologist explains to the patient that early detection of the cancer can significantly improve treatment outcomes. Considering the stages of gastric cancer, which aspect should the oncologist emphasize most to the patient regarding the importance of early screening for better prognosis?
Explanation
The correct answer emphasizes the asymptomatic nature of early-stage gastric cancer, which highlights the need for regular screenings. The other options reflect misconceptions about the nature of gastric cancer, its detectability, and the importance of staging in treatment efficacy.
Question 7
A researcher is studying the relationship between dietary habits and gastric cancer. They find that certain dietary patterns are associated with an increased risk of developing the disease. Which of the following dietary factors should the researcher consider as potentially linked to a higher incidence of gastric cancer?
Explanation
The correct answer highlights the link between high consumption of smoked and preserved foods, which are known to contain carcinogens that can increase cancer risk. The other options reflect common misconceptions about diet and cancer risk, suggesting that healthy foods or protein levels have no relation to gastric cancer development.
Question 8
[Case Scenario] A 65-year-old male patient with a history of gastrointestinal discomfort and unexplained weight loss presents to the clinic. After conducting an endoscopy, the physician finds an abnormal mass in the stomach lining, and tissue biopsy results indicate gastric cancer. The physician discusses treatment options that typically include surgery, chemotherapy, and radiotherapy. Question: Based on standard treatment protocols, which of the following treatment options is most commonly recommended as the first line of management for gastric cancer in resectable cases?
Explanation
In cases of resectable gastric cancer, surgical intervention is the most effective approach to ensure removal of cancerous tissue and improve patient outcomes. Chemotherapy and radiotherapy are often used for palliative care or in non-resectable scenarios.
Question 9
[Case Scenario] A 70-year-old female patient, recently diagnosed with stage II gastric cancer, undergoes a treatment plan involving both chemotherapy and surgery. After three cycles of chemotherapy, she experiences significant side effects, including nausea, fatigue, and hair loss. The oncologist explains the role of chemotherapy in treating gastric cancer and its target on rapidly dividing cells, which includes cancer cells as well as some normal cells. Question: Which side effect experienced by the patient is primarily due to the impact of chemotherapy on normal, rapidly dividing cells?
Explanation
Chemotherapy affects all rapidly dividing cells in the body, including hair follicle cells, leading to hair loss as a common side effect. Understanding these effects helps manage patient expectations and care.
Question 10
[Case Scenario] A group of researchers is studying the epidemiology and risk factors associated with gastric cancer. They collect data on several hundred individuals, including lifestyle factors such as diet, smoking, and family history. The researchers hypothesize that certain dietary patterns may increase the risk of developing gastric cancer. Question: Based on current scientific understanding, which dietary factor is most strongly associated with an increased risk of gastric cancer?
Explanation
Research has shown that a high intake of processed meats, which often contains nitrates and other harmful substances, is significantly associated with an increased risk of gastric cancer. Understanding these associations can help guide dietary recommendations for cancer prevention.