Certified Tumor Registrar (CTR) Practice Exam

Which type of surgical procedure involves the use of a scope to remove tissue?

1. Laparotomy

2. Endoscopy

3. Biopsy

4. Radiation therapy

The correct answer is: Endoscopy

The correct answer is the procedure that uses a scope to visualize and remove tissue directly from within a body cavity. Endoscopy specifically refers to a minimally invasive technique where an endoscope— a flexible tube with a camera and light—is inserted into the body to examine internal organs or structures. During this procedure, tools can be introduced through the scope, allowing for the removal of tissue or foreign objects, or for the performance of certain types of surgeries. In the context of surgical procedures, laparotomy is an open surgery that involves making a large incision in the abdominal wall and is not associated with the use of a scope. A biopsy refers to the process of sampling tissue for diagnostic purposes and can be performed with various techniques, including but not limited to endoscopic methods, but does not inherently involve the scope as the primary defining feature. Radiation therapy is a non-surgical method of treating cancer using high doses of radiation to kill or damage cancer cells and does not involve any physical removal of tissue. Therefore, endoscopy is clearly defined by its use of a scope for such purposes, making it the correct choice for this question.