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Health A-Z
Brain & Nervous System
Neurological Symptoms and Diagnosis
Neurological symptoms can point to a variety of conditions affecting the brain or nerves. Learn about diagnostic tests you can expect so you can work with your doctor to reach a specific diagnosis.
Brain Imaging Tests
Medically reviewed by Nicholas R. Metrus, MD
Chorea: Overview and More
Medically reviewed by Claudia Chaves, MD
What Is Tardive Dyskinesia?
Medically reviewed by Diana Apetauerova, MD
Components of the Neurological Exam
Medically reviewed by Nicholas R. Metrus, MD
Transverse Myelitis: Symptoms, Causes, Diagnosis, Treatment
Medically reviewed by Claudia Chaves, MD
Symptoms and Causes of Chronic Subjective Dizziness
Medically reviewed by Claudia Chaves, MD
Convulsions: Overview and more
Medically reviewed by Diana Apetauerova, MD
Why Do You Feel Cold All the Time?
Medically reviewed by Diana Apetauerova, MD
What You Should Know If You Have Leg Weakness
Medically reviewed by Huma Sheikh, MD
Rett Syndrome: Symptoms, Causes, and Treatment
Medically reviewed by Joel Forman, MD
Potential Causes of a Numb Thumb or Hand
Medically reviewed by Grant Hughes, MD
Spots on an MRI: White Matter Hyperintensities
Medically reviewed by Claudia Chaves, MD
How Brain Death Is Diagnosed
Medically reviewed by Shaheen Lakhan, MD, PhD
Electromyography: Uses, Side Effects, Procedure, Results
Medically reviewed by Nicholas R. Metrus, MD
Comparing MRI and CT Scans Risks and Indications
Medically reviewed by Claudia Chaves, MD
7 Signs You May Be Having a Stroke
Medically reviewed by Diana Apetauerova, MD
Vitamin B12 Deficiency: Overview and More
Medically reviewed by Claudia Chaves, MD
Finding the Cause of Weakness
Medically reviewed by Shaheen Lakhan, MD, PhD
Overview of Elevated Intracranial Pressure
Medically reviewed by Nicholas R. Metrus, MD
Chronic Traumatic Encephalopathy (CTE): Overview and More
Medically reviewed by Diana Apetauerova, MD
Understanding Dizziness as a Side Effect of Medications
Medically reviewed by Sarah Rahal, MD
How Doctors Diagnose Guillain-Barré Syndrome
Medically reviewed by Shaheen Lakhan, MD, PhD
Disorders of Impaired Consciousness
Medically reviewed by Huma Sheikh, MD
Top 7 Most Serious Causes of Back Pain
Medically reviewed by Claudia Chaves, MD
Vitamin Deficiencies and Myeloneuropathy
Medically reviewed by Sarah Rahal, MD
Causes and Terms for Ataxia
Medically reviewed by Sarah Rahal, MD
Synesthesia and the Involuntary Blending of Senses
Medically reviewed by Shaheen Lakhan, MD, PhD
Overview and Causes of Olfactory Disorders
Medically reviewed by Shaheen Lakhan, MD, PhD
Functional Magnetic Resonance Imaging Explained
Medically reviewed by Shaheen Lakhan, MD, PhD
Evaluating Tremors and Their Causes
Medically reviewed by Claudia Chaves, MD
Diagnosing Different Types of Dizziness
Medically reviewed by Diana Apetauerova, MD
Lhermitte's Sign: Symptoms, Causes, Treatment
Medically reviewed by Diana Apetauerova, MD
Nonketotic Hyperglycinemia: Symptoms, Causes, Treatment
Medically reviewed by Nicholas R. Metrus, MD
Horner Syndrome: Symptoms, Causes, Diagnosis, Treatment
Medically reviewed by Nicholas R. Metrus, MD
What Is Cerebral Hyperperfusion Syndrome?
Medically reviewed by Shaheen Lakhan, MD, PhD
Neurological Itches and Why Scratching Doesn't Help
Medically reviewed by Claudia Chaves, MD
Nerve Pain Linked to Medical Conditions and Injury
Medically reviewed by Sarah Rahal, MD
Overview and Importance of Cerebrospinal Fluid
Medically reviewed by Doru Paul, MD
Transverse Myelitis or Sudden Paralysis
Medically reviewed by Shaheen Lakhan, MD, PhD
SPECT Scan: Uses, Side Effects, Procedure, Results
Medically reviewed by Huma Sheikh, MD
Internal Bleeding: Signs, Symptoms, and Complications
Medically reviewed by Michael Menna, DO
4 Uncommon Causes of Chronic Dizziness
Medically reviewed by Claudia Chaves, MD
Fungal Infections of the Nervous System
Medically reviewed by Huma Sheikh, MD
Causes and Treatment of Radial Nerve Injuries
Medically reviewed by Claudia Chaves, MD
How Ultrasounds Are Used in Neurology
Medically reviewed by Shaheen Lakhan, MD, PhD
Overview of the Types of Tremors
Medically reviewed by Sarah Rahal, MD
Low Sodium: Symptoms, Causes, Diagnosis, and Treatment
Medically reviewed by Diana Apetauerova, MD
The Autonomic Nervous System: Anatomy and Function
Medically reviewed by Shaheen Lakhan, MD, PhD
Psychogenic Nonepileptic Seizures
Medically reviewed by Shaheen Lakhan, MD, PhD
Transient Global Amnesia Causes and Symptoms
Medically reviewed by Claudia Chaves, MD
Injury to Spinal Nerve Roots
Medically reviewed by Diana Apetauerova, MD
Tensilon Test: Uses, Side Effects, Procedure, Results
Medically reviewed by Diana Apetauerova, MD
Understanding the Default Mode Network
Medically reviewed by Sarah Rahal, MD
Confirmatory Tests for Brain Death
Medically reviewed by Diana Apetauerova, MD
Understanding Brown-Séquard Syndrome
Medically reviewed by Shaheen Lakhan, MD, PhD
Understanding Peripheral Neuropathy
Medically reviewed by Claudia Chaves, MD
Common Medical Problems Seen in the Neuro-ICU
Medically reviewed by Sarah Rahal, MD
How Your Brain Handles Pain
Medically reviewed by Shaheen Lakhan, MD, PhD