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A 45-year-old woman has just undergone a radical hysterectomy for invasive cervical cancer. Prior to the surgery the physician explained to the patient that after the surgery a source of radiation would be placed near the tumor site to aid in reducing recurrence. What is the placement of the source of radiation called?

  • A. Internal beam radiation
  • B. Trachelectomy
  • C. Brachytherapy
  • D. External radiation
Correct Answer: C

Rationale: The correct answer is C: Brachytherapy. Brachytherapy involves placing a radiation source near or directly into the tumor site. In this case, after the hysterectomy, the source of radiation is placed near the cervical cancer site to deliver targeted radiation therapy. This method helps reduce the risk of cancer recurrence by delivering high doses of radiation to the tumor while minimizing exposure to surrounding healthy tissues.

Choice A (Internal beam radiation) typically refers to a type of external radiation therapy where radiation beams are directed at the tumor from outside the body, not placed internally like brachytherapy.

Choice B (Trachelectomy) is a surgical procedure that involves removal of the cervix while preserving the uterus, not related to radiation therapy.

Choice D (External radiation) involves delivering radiation from outside the body using a machine, unlike brachytherapy where the radiation source is placed internally near the tumor site.