• Meningism

  Meningism, also called meningismus or pseudomeningitis, is a set of symptoms similar to those of meningitis but not caused by meningitis. Whereas meningitis is inflammation of the meninges (membranes that cover the central nervous system), meningism is caused by nonmeningitic irritation of the meninges, usually associated with acute febrile illness, especially in children and adolescents. Meningism involves the triad (3-symptom syndrome) of nuchal rigidity (neck stiffness), photophobia (intolerance of bright light), and headache. It therefore requires differentiating from other CNS problems with similar symptoms, including meningitis and some types of intracranial hemorrhage. Related clinical signs include Kernig's sign and three signs all named Brudzinski's sign.

  Although nosologic coding systems such as ICD-10 and MeSH define meningism/meningismus as meningitis-like but in fact not meningitis, many physicians use the term "meningism" in a loose sense clinically to refer to any meningitis-like set of symptoms before the cause is definitively known. In this sense, the word implies "suspected meningitis". The words "meningeal symptoms" can be used instead to avoid confusion between the word senses, thus reserving the term "meningism" for its strict sense. Readers of the medical literature should remain aware that the words are used in more than one sense.

• Meningismus

  Meningism, also called meningismus or pseudomeningitis, is a set of symptoms similar to those of meningitis but not caused by meningitis. Whereas meningitis is inflammation of the meninges (membranes that cover the central nervous system), meningism is caused by nonmeningitic irritation of the meninges, usually associated with acute febrile illness, especially in children and adolescents. Meningism involves the triad (3-symptom syndrome) of nuchal rigidity (neck stiffness), photophobia (intolerance of bright light), and headache. It therefore requires differentiating from other CNS problems with similar symptoms, including meningitis and some types of intracranial hemorrhage. Related clinical signs include Kernig's sign and three signs all named Brudzinski's sign.

  Although nosologic coding systems such as ICD-10 and MeSH define meningism/meningismus as meningitis-like but in fact not meningitis, many physicians use the term "meningism" in a loose sense clinically to refer to any meningitis-like set of symptoms before the cause is definitively known. In this sense, the word implies "suspected meningitis". The words "meningeal symptoms" can be used instead to avoid confusion between the word senses, thus reserving the term "meningism" for its strict sense. Readers of the medical literature should remain aware that the words are used in more than one sense.

• Meningism (noun)

  A set of symptoms similar to those of meningitis but not caused by it, involving the triad of nuchal rigidity (neck stiffness), photophobia, and headache, a sign of irritation of the meninges.

• Meningism (noun)

  Such symptoms as identified clinically but before knowledge of their cause is ascertained (that is, before diagnosis or before its confirmation); meningeal symptoms.

• Meningism (noun)

  symptoms that mimic those of meningitis but without inflammation of the meninges

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