Neurology

Criterios Diagnóstico para Vértigo Posicional Paroxístico Benigno

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Diagnostic Criteria for Benign Paroxysmal Positional Vertigo Vertigo associated with a characteristic mixed torsional and vertical nystagmus provoked by the Dix-Hallpike test A latency (typically of 1 to 2 seconds) between the completion of the Dix-Hallpike test and the onset of vertigo and nystagmus Paroxysmal nature of the provoked vertigo and nystagmus (i.e., an increase … Read more

Diagnostic Criteria of Infarction in MRI of the Brain in Acute Stroke

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Acute: Subtle low signal (hypointense) on T1, often difficult to see at this stage, and high signal (hyperintense) on spin density and/or T2-weighted and proton density-weighted images starting 8 h after onset; should follow vascular distribution. Mass effect maximal at 24 h, sometimes starting 2 h after onset, even in the absence of parenchymal signal changes. No parenchymal enhancement with paramagnetic contrast agent. Territorial intravascular paramagnetic contrast enhancement of “slow-flow” arteries in hyperacute infarcts; at 48 h, parenchymal and meningeal enhancement can be expected.

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Diagnostic Criteria for Tuberous Sclerosis Complex (TSC)

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The diagnostic criteria for tuberous sclerosis complex (TSC) were revised at the Tuberous Sclerosis Complex Consensus Conference, July 1998.

Definite TSC: Two major features or one major feature plus two minor features

Probable TSC: One major feature plus one minor feature

Possible TSC: One major feature or two or more minor features

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Diagnostic Criteria of Paraneoplastic Neurological Disorder (PND) of the CNS

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Definite PND

  1. Classic syndrome with cancer diagnosed within 5 years of neurological symptom development
  2. Nonclassic syndrome that resolves or significantly improves after cancer treatment
  3. Nonclassic syndrome with cancer diagnosed within 5 years of neurological symptom development and positive antineuronal antibodies
  4. Neurological syndrome (classic or not) without cancer and with well-characterized antineuronal antibodies

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ICHD-II Diagnostic Criteria for Classical Trigeminal Neuralgia

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Classical trigeminal neuralgia

A. Paroxysmal attacks of pain lasting from a fraction of a second to 2 minutes, affecting one or more divisions of the trigeminal nerve and fulfilling criteria B-C

B. Pain has at least 1 of the following characteristics:

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