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Pituitary Tumors

Overview

Pituitary tumors occur in the pituitary gland which is a small structure located at the base of the brain that makes, stores and releases hormones. Tumors that arise from the pituitary gland reflect the different cell types and their cell origin. Examples of pituitary tumors include pituitary neuroendocrine tumors (PitNETs), craniopharyngiomas, pituitary blastomas, pituicytomas, etc. Sometimes cancers like breast and lung cancer can spread to the pituitary. Signs and symptoms are most commonly vision loss because of the location near the optic nerves or hormone imbalance because of the pituitary’s critical role in hormone production. These imbalances can lead to sexual dysfunction, menstrual changes, unexplained weight change, skin changes, and more.

2021 WHO CNS Grade

In many neuroendocrine tumours, grade is defined by speed of growth. Currently there is no grading system for pituitary neuroendocrine tumours (PitNETs). Other tumor types such as pituitary carcinoma are considered grade 4.

Statistics

  • Percent of All Brain and Other CNS Tumors: 17.4%
  • Average Annual Age-Adjusted Incidence Rate: 4.67 per 100,000
  • Median Age at Diagnosis: 51 years

Survival

Survival rates compare the percentage of people living with a particular diagnosis at a particular point in time compared to the general population.

  • One-Year Relative Survival Rate: 98.3%
  • Five-Year Relative Survival Rate: 97.1%
  • Ten-Year Relative Survival Rate: 95.5%

Treatment Options

Every person living with a brain or CNS tumor is unique. If you have been diagnosed with a brain or CNS tumor and would like to better understand your treatment options, it is important to work with your health care team to decide the best course of treatment for you. You may also consider getting a second opinion or reaching out to our Personalized Support and Navigation team to learn more.

Treatment Options

Every person living with a brain or CNS tumor is unique. If you have been diagnosed with a brain or CNS tumor and would like to better understand your treatment options, it is important to work with your health care team to decide the best course of treatment for you. You may also consider getting a second opinion or reaching out to our Personalized Support and Navigation team to learn more.

…this is terrifying for anyone involved, and the unknown is so scary.

Abby P.
Read more about Abby’s Pituitary Tumor Experience

References

The above information is from the World Health Organization (WHO) Central Nervous System (CNS) Tumors Classification of Tumours and the Central Brain Tumor Registry of the United States (CBTRUS) unless otherwise noted. It was written by NBTS staff and medically reviewed by members of the NBTS Scientific and Medical Advisory Council.

Last updated April 22, 2025

Please speak with your health care provider for more information about your tumor type, biomarkers, and treatment options, including clinical trials.

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