<prompt> Prophylactic cranial irradiation is indicated in the treatment of all of the following, except:Small cell Ca of lungALLHodgkins lymphomaNHL  <response>: All malignancies except hodgkins lymphoma given in the question show discrimination CSF pathway and therefore require prophylactic Craniospinal irradiation. Ref: Harrisons Principles of Internal Medicine, 15th Edition, Page 2449 