What dose and fractionation do you use when you want an abbreviated course for incompletely resected squamous cell carcinoma of the pre-auricular area?  

The answer to this depends on what you are targeting and in turn, the size of your target volume.  If treating microscopic residual at the site of the primary (which was not larger than 2 cm), 35 Gy/5 fractions is the shortest course that is advocated by NCCN.  For larger target volumes, c...