The arrow is pointing to the

The laryngopharynx continues inferiorly as the

What is the most common pathology of malignant tumors of the prostate?

The treatment head of a linear accelerator includes all of the following EXCEPT:

The paranasal sinuses are lined with                           

Identify the indicated structure.    

What structure is indicated?    

A radioactive isotope that would be prescribed for a metastatic bone study in a prostate patient is

What is the principal advantage of isocentric technique over non-isocentric source to surface distance techniques for a treatment using parallel opposed treatment portals?

Your patient is being treated supine using AP/PA ports. The dosimetrist asks you to make an anterior shift on the PA port of 1 cm. Which of the following is true?