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Table 1 Indications for the diagnostic LP under consideration of the contraindications (see below)

From: S1 guidelines “lumbar puncture and cerebrospinal fluid analysis” (abridged and translated version)

Suspected condition
 …Meningitis
 …Encephalitis
 …Myelitis
 …Neuroborreliosis
 …Neurotuberculosis
 ...Polyradiculoneuritis Guillain-Barré
 …Chronic inflammatory demyelinating polyneuropathy
 …Encephalomyelitis disseminata
 …Neuromyelitis optica spectrum disorder
 …Neurosarcoidosis
 …Neurolupus
 …Subarachnoidal hemorrhage
 …Meningiosis carcinomatosa
 …Meningiosis lymphomatosa
 ...Idiopathic intracranial hypertension
 ...Normal pressure hydrocephalus
Differential diagnosis of the following core symptoms:
 -Headache
 -Dementia syndrome
 -Sepsis with unknown focus of infection