Jobs will also be challenging post-training, since kids and adults get different cancers and receive different treatment, and you’d need to identify a niche that would make sense to prospective employers. In addition to sarcoma (mentioned above), adolescent and young adult leukemia and lymphoma might be an area where an institution might want to hire someone who could see kids and adults. Also, peds onc jobs are basically all at academic children’s hospitals - is that the setting you want to work in? Lots to think about over the next many years of training!