In the United States, a neurosurgeon must generally
complete four years of college, four years of
medical school, a year-long internship (PGY-1) that
is usually affiliated with their residency program,
and five to six years of neurosurgery
residency. Most, but not all,
residency programs have some component of basic
science or clinical research. Neurosurgeons may
pursue an additional training in a fellowship, after
residency or in some cases, as a senior resident.
These fellowships include
pediatric neurosurgery, trauma/neurocritical
care, functional and stereotactic surgery,
surgical neurooncology,
radiosurgery, neurovascular surgery,
Interventional neuroradiology, peripheral
nerve, spine surgery and skull base surgery.
Neurosurgeons can also pursue fellowship training in
neuropathology and neuroophthalmology.Wikipedia.org