What hypofractionated radiotherapy dose regimen is acceptable for plasmacytoma?  

At the end of the day, it all comes down to delivering a reasonable BED in the range of +/- 50 Gy in fractions of 2 Gy. The type of fractionation chosen is a question of the treatment volume, location, and adjacent OARs. I have treated a few plasmacytomas with SBRT (for instance in the ribs) with ...