meningism
Noun: A clinical condition characterized by symptoms that closely resemble those of meningitis—such as headache, neck stiffness (nuchal rigidity), photophobia, and fever—but in which there is no actual inflammation of the meninges (the protective membranes covering the brain and spinal cord). It is a sign of irritation rather than infection of the meninges.
Meningism is a medical term used primarily by healthcare professionals to describe a specific set of symptoms and to distinguish them from true meningitis. It is a finding noted during a patient examination. - The term is used as a countable noun (e.g., a case of meningism). - It is often discussed in the context of its potential causes.
- The patient presented with meningism, but a lumbar puncture revealed clear cerebrospinal fluid, ruling out bacterial meningitis.
- Severe dehydration can sometimes cause signs of meningism.
- The doctor documented meningism on the chart, prompting further diagnostic tests.
- Differential Diagnosis: Meningism is a key concept in differential diagnosis, where a clinician must distinguish between this condition and more serious diseases like meningitis or subarachnoid hemorrhage.
- The presence of meningism without fever led the team to consider a non-infectious cause.
- Meningeal (adjective): Pertaining to the meninges.
- Meningeal irritation can cause neck stiffness.
- Meningitis (noun): The actual inflammation of the meninges, typically due to infection.
- Bacterial meningitis is a medical emergency.
- Meningeal signs: A more general term for the symptoms (stiff neck, etc.) that can indicate meningism or meningitis.
- Pseudomeningitis: A rarely used synonym emphasizing the "false" presentation.
This word has a single, specific medical meaning. It is not used in general or figurative contexts. The core distinction from "meningitis" is the absence of inflammatory cells in the cerebrospinal fluid.
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symptoms that mimic those of meningitis but without inflammation of the meninges
