Short answer · Medically reviewed summary · Last updated: 2026-05-08
A brain tumor, medically referred to as an intracranial neoplasm, is a mass of abnormal cells in the brain or central spinal canal. While often referred to simply as a brain tumor, clinical documentation may use specific terminology based on the tumor's origin, such as primary intracranial neoplasm or central nervous system (CNS) malignancy. What are the common synonyms and clinical names for a brain tumor? Medical professionals use several terms to describe a brain tumor depending on the context.
A brain tumor, medically referred to as an intracranial neoplasm, is a mass of abnormal cells in the brain or central spinal canal. While often referred to simply as a brain tumor, clinical documentation may use specific terminology based on the tumor's origin, such as primary intracranial neoplasm or central nervous system (CNS) malignancy.
Medical professionals use several terms to describe a brain tumor depending on the context. While the term brain tumor is standard in patient-facing communication, formal medical records may use the following: intracranial neoplasm, intracranial mass, CNS tumor, or intracranial space-occupying lesion. In historical or older medical literature, you may occasionally see terms like "intracranial glioma" or "cerebral tumor," though these are less precise by modern standards.
The naming of a brain tumor varies due to the complexity of neuro-oncology and the evolution of diagnostic classifications. Because there are over 120 different types of tumors that can affect the brain, doctors often prefer specific histological names (like glioblastoma or meningioma) rather than the broad category of brain tumor. These names are dictated by the World Health Organization (WHO) Classification of Tumors of the Central Nervous System, which is the global gold standard for diagnosing and naming these conditions.
To ensure consistent care, clinicians rely on standardized coding systems to classify a brain tumor. Key systems include:
Medical disclaimer: This information is for educational purposes only and should not replace professional medical advice, diagnosis, or treatment.