Survival rates By Mayo Clinic Staff The survival outlook for a pineal gland tumor varies widely based on the tumor type and how it behaves over time. Some tumors, such as germinomas, often respond very well to treatment. Other tumors tend to behave more aggressively and may require more-intensive therapy. Several factors can affect prognosis in pineal gland tumors, including: Tumor type. Whether the tumor has spread. How much of the tumor can be safely removed with surgery. How well the tumor responds to radiation therapy or chemotherapy. Age at diagnosis. Overall health. Life expectancy with a pineal gland tumor can differ greatly from one person to another. For some people, treatment is successful and they live many years after diagnosis. Others may need long-term treatment and follow-up care. Because pineal gland tumors are rare and varied, prognosis is best discussed based on the individual tumor type and treatment plan. In some cases, a pineal gland tumor can be life-threatening, particularly if it grows quickly, spreads or causes serious pressure on the brain. However, many pineal gland tumors can be treated. Many people are living longer and doing better as doctors learn more about these tumors and improve treatment options. How fast do pineal gland tumors grow?The growth rate of a pineal gland tumor depends on the tumor type. Some tumors grow slowly and may change very little over months or even years. Others grow more quickly and may spread to nearby areas of the brain or spine over a shorter period of time. Imaging and other test results help determine how the tumor is behaving. Request an appointment Diagnosis & treatmentDoctors & departments Feb. 17, 2026 Share on: FacebookTwitter Living with pineal gland tumor? Connect with others like you for support and answers to your questions in the Brain Tumor support group on Mayo Clinic Connect, a patient community. Brain Tumor Discussions Pineal Cyst: What symptoms led to your diagnosis? 65 Replies Tue, Jun 30, 2026 chevron-right Pituitary tumor symptoms: joint, muscle and body aches 187 Replies Fri, Jun 26, 2026 chevron-right Share Your Brain Tumor type & Years since Diagnosis 105 Replies Mon, Jun 15, 2026 chevron-right See more discussions Show references Melmed S, et al. Neuroendocrinology. In: Williams Textbook of Endocrinology. 15th ed. Elsevier; 2025. https://www.clinicalkey.com. Accessed Jan. 12, 2026. Pineal region tumors: Diagnosis and treatment. National Cancer Institute. https://www.cancer.gov/rare-brain-spine-tumor/tumors/pineal-region-tumors. Accessed Jan. 12, 2026. Moschovi M, et al. Pineal gland masses. https://www.uptodate.com/contents/search. Accessed Jan. 12, 2026. Favero G, et al. Pineal gland tumors: A review. Cancers. 2021; doi:10.3390/cancers13071547. Lombardi G, et al. Diagnosis and treatment of pineal gland tumors in adults: A EURACAN overview. Cancers. 2022; doi:10.3390/cancers14153646. Liu APY, et al. SNO-EANO-EURACAN consensus on management of pineal parenchymal tumors. Neuro-Oncology. 2024; doi:10.1093/neuonc/noae128. Webb M, et al. Clinical experience and outcomes in patients with pineal parenchymal tumor of intermediate differentiation (PPTID): a single-institution analysis. Journal of Neuro-Oncology. 2022; doi:10.1007/s11060-022-04174-6. Related Associated Procedures Brain CT scan Brain magnetic resonance imaging Brain tumor surgery Chemotherapy Neurological examinations Radiation therapy Show more associated procedures Pineal gland tumorSymptoms&causesDiagnosis&treatmentSurvivalratesDoctors&departmentsCare atMayoClinic CON-20593981 Diseases & Conditions Pineal gland tumor