For most types of cancer, staging is the process used to determine if and how far the cancer has spread. This is done to help guide treatment. But pituitary tumors are nearly always benign (not cancer) and do not spread, so there is no staging system for them. Pituitary carcinoma (cancer) is too rare for a staging system to have been developed.
The most useful information for guiding the treatment of a pituitary adenoma is:
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Dorsey JF, Salinas RD, Dang M, et al. Chapter 63: Cancer of the central nervous system. In: Niederhuber JE, Armitage JO, Doroshow JH, Kastan MB, Tepper JE, eds. Abeloff’s Clinical Oncology. 6th ed. Philadelphia, Pa. Elsevier: 2020.
Molitch ME. Diagnosis and treatment of pituitary adenomas: A review. JAMA. 2017;317(5):516-524.
National Cancer Institute. Physician Data Query (PDQ). Pituitary Tumors Treatment. 2020. Accessed at
https://www.cancer.gov/types/pituitary/patient/pituitary-treatment-pdq on July 21, 2022.
Last Revised: October 10, 2022
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