Diagnosis of Nelson syndrome at an earlier stage allows for treatment by radiation therapy, which can significantly reduce tumor growth. Other treatments include transsphenoidal surgery, postoperation radiotherapy, and administration of an alkylating agent. Early detection and intervention contributes to a more positive prognosis. Prognosis, however, is not good for enlarged, invasive macroadenomas where diagnosis and treatment were delayed.
E24.1 – Nelson's syndrome
43019009 – Nelson syndrome