Which of the following is an advantage of brachytherapy? a. It ...

[awywial]

Which of the following is an advantage of brachytherapy?
 
  a. It is a treatment option for all lung cancer types.
  b. It does not require the use of a broncho-scope.
  c. A lower dose of radiation can be delivered to the tumor cells while minimizing radia-tion to the normal tissue.
  d. A higher dose of radiation can be deliv-ered to the tumor cells while minimizing radiation to the normal tissue.

Question 2

Which of the following are indications for self-expanding metallic stent placement?
 
  1. Extrinsic compression of central airways
  2. Stabilizing airway patency after endoscopic removal of an intrinsic tumor
  3. Sealing fistula between the lung and the gastrointestinal tract
  4. Managing benign central airway obstruction
  a. 1 and 3 only
  b. 1, 2, and 3 only
  c. 3 and 4 only
  d. 1, 2, 3, and 4

[Bigfoot1984]

Answer to Question 1

ANS: D
The main advantage of brachytherapy is that a higher dose of radiation can be delivered to the tumor cells while minimizing radiation to the normal tissue, thereby reducing complications. Brachytherapy is indicated in patients with inoperable lung cancer or cancer metastatic to the airways.

Answer to Question 2

ANS: B
The indications for SEMS placement include (1) extrinsic compression of central airways; (2) sta-bilizing airway patency after endoscopic removal of an intrinsic tumor; (3) sealing fistula between the lung and the gastrointestinal tract; and (4) managing of post-lung transplant anastomotic complications. SEMS is rarely used in benign central airway obstruction because there is high risk for stent-related granulation tissue formation.