Glioblastoma Multiforme

Dr. Ayush PandeyMBBS,PG Diploma

December 05, 2018

March 06, 2020

Glioblastoma Multiforme
Glioblastoma Multiforme

What is GBM?

Glioblastoma multiforme (GBM) refers to a malignant (cancerous), aggressive (fast-growing) tumour of the brain and the spinal cord. This type of tumour is formed from the glial tissue, a kind of connective tissue, found in the brain and the spinal cord.

What are its main signs and symptoms?

As the tumour grows, it can have a severe impact on the functioning of the nervous system. The symptoms of GBM may include:

What are its main causes?

The primary cause of GBM is not known. However, studies are being conducted to understand the influence of various factors such as environment, genetics, and occupational hazards in the development of GBM.

How is it diagnosed and treated?

The diagnosis will begin by evaluating the symptoms of the patient via a physical examination. The doctor will also inquire about the medical history of the patient and their family

A neurological examination is performed to assess:

  • Reflexes
  • Coordination
  • Pain response
  • Muscular strength

After the initial assessment of the symptoms, the doctor will also conduct imaging tests such as magnetic resonance imaging (MRI), computed tomography (CT), and positron emission tomography (PET) scan to obtain images of the brain and detect any signs of swelling or abnormal growth.

Biopsy (testing of brain tissue) may be done to confirm the diagnoses of GBM.

There is no available cure for GBM at the moment. The treatment aims to reduce the severity of the symptoms and prolong patient survival.

There are 3 main courses of treatment which are as follows:

  • Radiation therapy: Radiation therapy is used for destroying the tumour cells and preventing any damage to the surrounding tissues. This therapy helps in inhibiting the growth of the tumour.
  • Chemotherapy: Chemotherapy makes use of drugs which prevent the cancer cells from multiplying. These drugs may be administered orally or through injections. Chemotherapy drugs can produce side effects like nausea and vomiting.
  • Surgery: This involves the removal of the cancerous tissue from the brain and may be performed in combination with chemotherapy and radiation therapy.


  1. National Cancer Institute [Internet]. Bethesda (MD): U.S. Department of Health and Human Services; The Cancer Genome Atlas Program.
  2. National Cancer Institute [Internet]. Bethesda (MD): U.S. Department of Health and Human Services; NCI Dictionary of Cancer Terms.
  3. Mary Elizabeth Davis. et al. Glioblastoma: Overview of Disease and Treatment. Clin J Oncol Nurs. 2016 Oct 1; 20(5): S2–S8. PMID: 27668386
  4. National Cancer Institute [Internet]. Bethesda (MD): U.S. Department of Health and Human Services; Glioblastoma—Unraveling the Threads: A Q&A with Drs. Mark Gilbert and Terri Armstrong of the NIH Neuro-Oncology Branch.
  5. National Center for Advancing and Translational Sciences. [Internet]. U.S. Department of Health and Human Services; Glioblastoma.
Ask your health query from live doctors now!