Meningeal biopsy

Meningeal Biopsy

Meningeal biopsy (/mɪˈnɪndʒiəl ˈbaɪɒpsi/) is a medical procedure that involves the removal of a small sample of meninges for examination under a microscope. The meninges are the protective membranes that cover the brain and spinal cord.

Etymology

The term "meningeal" is derived from the Greek word "meninx," which means "membrane," and "biopsy" is derived from the Greek words "bios" (life) and "opsis" (sight).

Procedure

A meningeal biopsy is usually performed when a disease or condition affecting the meninges is suspected, such as meningitis, meningeal carcinomatosis, or meningeal tuberculosis. The procedure is typically performed under local anesthesia and involves the insertion of a needle through the skin and into the meninges to extract a tissue sample.

Related Terms

Meninges: The three membranes that cover the brain and spinal cord.
Biopsy: The removal of tissue for diagnostic examination.
Meningitis: Inflammation of the meninges, often due to infection.
Meningeal carcinomatosis: The spread of cancer to the meninges.
Meningeal tuberculosis: A form of tuberculosis that affects the meninges.

Risks and Complications

As with any invasive procedure, a meningeal biopsy carries some risks, including infection, bleeding, and damage to the surrounding tissues. Complications are rare but can include cerebrospinal fluid leakage and neurological symptoms such as headache or seizures.