Genitourinary Cancers   

Would you have reservations in treating patients with breast, GI, or pelvic malignancies with radiation alone or concurrent chemoradiation?

Would your answer change for favorable vs unfavorable intermediate risk disease?

Would active vasculitis present a contraindication to therapy?

Would you require the rituxan to be held prior to radiation?  Would this matter if it was in the post-prostatectomy setting?

Are there any other medications, outside of anticoagulation, that would be considered absolute or relative contraindications?