Neoplasia — MCQs

What is true about proto-oncogenes?

Which benign tumor is known to show metastasis?

Which of the following tumors is most likely associated with either hyponatremia or diffuse pigmentation of the skin?

Which of the following childhood tumors most frequently metastasizes to the bone?

Thorium dioxide is known to cause which of the following malignancies?

The degradation of p53 through Ubiquitin-dependent proteolysis is facilitated by the binding of high-risk HPV protein.

Which of the following markers is not typically expressed by neuroendocrine tumors?

Which of the following tumors is associated with BRAF mutation?

A 58-year-old woman with colon cancer presents with 3 months of increasing shortness of breath. A chest X-ray reveals numerous, bilateral, round masses in both lungs. Histologic examination of an open-lung biopsy discloses malignant gland-like structures, which are nearly identical to the colon primary. Which of the following changes in cell behavior was the first step in the process leading to tumor metastasis from the colon to the lung in this patient?

Defective DNA repair is seen in all of the following conditions EXCEPT?