Is it feasible to give pelvic radiotherapy in patients with a congenital, functioning, pelvic kidney?  

Agree with @Sushil Beriwal Pelvic kidney is not necessarily a contraindication to radiation with modern (e.g. IMRT) RT planning Lots of teaching cases and case series For these patients, we first make sure treatment to the pelvis is absolutely necessary. Treatment planning is done with high prior...

It is feasible based on target ( nodal RT or not ) and location of pelvic kidney. We try to underdose nodal RT on side of pelvic kidney with reduced or no PTV margin if treatment is prophylactic . Try to keep mean dose to 8 Gy or less