Aseptic meningitis is the inflammation of the meninges, a membrane covering the brain and spinal cord, in the absence of a positive test on a routine bacterial culture of the patient's cerebral spinal fluid. The most common cause of aseptic meningitis is nonpolio enteroviruses. Other causes include infectious and non-infectious agents such as mycobacteria, fungi, spirochetes, parameningeal infections, medications, and cancers.
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References[edit | edit source]
- Connolly KJ, Hammer SM. (1990). The acute aseptic meningitis syndrome. Infect Dis Clin North Am. 1990 Dec;4(4):599-622.
- Tunkel, Allan R. "Aseptic meningitis in adults". UpToDate. Wolters Kluwer Health. Retrieved Apr 20, 2018.
- "Viral Meningitis: Background, Pathophysiology, Etiology". Jul 17, 2018.
membrane - The word "membrane" can have different meanings in different fields of biology. In cell biology, a membrane is a layer of molecules that surround its contents. Examples of cell-biology membranes include the "cell membrane" that surrounds a cell, the "mitochondrial membranes" that form the outer layers of mitochondria, and the "viral envelope" that surrounds enveloped viruses. In anatomy or tissue biology, a membrane is a barrier formed by a layer of cells. Examples of anatomical membranes include the pleural membranes that surrounds the lungs, the pericardium which surrounds the heart, and some of the layers within the blood-brain barrier.