Cancer Biology And Neoplasia Practice Test

A 62-year-old man is found to have a 4-cm mass in his kidney on an abdominal CT scan performed for an unrelated reason. A biopsy confirms clear cell renal cell carcinoma. The pathologist notes that the tumor is highly vascular. This type of tumor is often associated with mutations in the VHL gene.

A 70-year-old man with a history of small cell lung cancer presents to the emergency department with progressive proximal muscle weakness. He reports difficulty rising from a chair and climbing stairs. On examination, his strength improves with repeated muscle contraction. Deep tendon reflexes are diminished.