Related Experiment Video

Updated: Aug 7, 2025

Handwriting Analysis Indicates Spontaneous Dyskinesias in Neuroleptic Naïve Adolescents at High Risk for Psychosis
05:52

Handwriting Analysis Indicates Spontaneous Dyskinesias in Neuroleptic Naïve Adolescents at High Risk for Psychosis

Published on: November 21, 2013

15.0K

Diagnostic Uncertainties: Chorea

Molly C Cincotta1, Ruth H Walker2

  • 1Department of Neurology, Temple University, Philadelphia, Pennsylvania.

Seminars in Neurology
|March 7, 2023
PubMed

Insights

Chorea, a hyperkinetic movement disorder, has many causes. Prompt diagnosis and evaluation of reversible factors are crucial for better outcomes in new-onset chorea cases.

Area of Science:

  • Neurology
  • Movement Disorders

Background:

  • Chorea is a hyperkinetic movement disorder with diverse acquired and inherited causes.
  • New-onset chorea presents an extensive differential diagnosis requiring careful evaluation.

Purpose of the Study:

  • To provide an overview of chorea etiologies.
  • To outline a practical diagnostic approach for new-onset chorea.

Main Methods:

  • Review of potential etiologies for chorea.
  • Discussion of diagnostic clues from history, examination, and basic testing.
  • Consideration of genetic and non-genetic causes.

Main Results:

  • Multiple acquired and inherited conditions can cause chorea.
  • Huntington's disease is a common genetic cause, but phenocopies exist.
  • Clinical and epidemiological factors guide genetic testing decisions.

Conclusions:

  • Prioritizing evaluation of treatable or reversible chorea causes is essential.
  • A systematic approach aids in narrowing the differential diagnosis.
  • Comprehensive genetic testing, guided by clinical presentation, is important.

More Related Videos

Utility of Dissociated Intrinsic Hand Muscle Atrophy in the Diagnosis of Amyotrophic Lateral Sclerosis08:16

Utility of Dissociated Intrinsic Hand Muscle Atrophy in the Diagnosis of Amyotrophic Lateral Sclerosis

Published on: March 4, 2014

32.0K
High-speed Video Microscopy Analysis for First-line Diagnosis of Primary Ciliary Dyskinesia05:32

High-speed Video Microscopy Analysis for First-line Diagnosis of Primary Ciliary Dyskinesia

Published on: January 19, 2022

4.4K

Related Concept Videos

Myasthenia Gravis: Diagnostic Tests01:15

Myasthenia Gravis: Diagnostic Tests

Myasthenia gravis is an autoimmune condition affecting neuromuscular transmission, causing generalized weakness in skeletal muscles. Initial diagnoses rely on patients' signs, symptoms, and medical history. The challenge lies in distinguishing myasthenia from other muscular dystrophies. An important diagnostic feature is the significant improvement of symptoms after administering anticholinesterase inhibitors.
The edrophonium test is a diagnostic tool for myasthenia gravis. It involves...
1.1K
Seizures: Classification01:13

Seizures: Classification

Epilepsy is primarily characterized by unpredictable seizures, either provoked by an identifiable factor, such as injury or illness, or unprovoked, occurring spontaneously without apparent cause.
Seizures are typically classified into two main categories: focal and generalized seizures.
Focal Seizures
Focal seizures originate from specific regions of the brain. These seizures are further sub-classified into two types:
502
Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation01:21

Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation

Clinical manifestationsPeripheral Arterial Disease (PAD) manifests through a range of symptoms, from the characteristic intermittent claudication to atypical presentations and severe complications in advanced stages. Intermittent claudication, a hallmark symptom of PAD, presents as exercise-induced muscle pain that typically resolves within minutes of rest. This pain is reproducible and stems from inadequate blood flow, leading to the accumulation of lactic acid produced during anaerobic...
21
Dysrhythmias V: Evaluating Dysrhythmias01:30

Dysrhythmias V: Evaluating Dysrhythmias

Dysrhythmias, also known as arrhythmias, are disturbances in the heart's rhythm that range from benign to life-threatening. A thorough evaluation is crucial for appropriate management and involves a comprehensive medical history, physical examination, and various diagnostic tests.Medical HistorySymptoms: Collect detailed information on palpitations, dizziness, syncope, chest pain, and fatigue. Note their onset, frequency, and triggers.Previous Cardiac Issues: Document any history of heart...
43
Acute Coronary Syndrome III: Diagnostic Studies01:30

Acute Coronary Syndrome III: Diagnostic Studies

Diagnosing acute coronary syndrome or ACS begins with a thorough patient history. Notable symptoms include central, crushing chest pain radiating to the left arm, neck, jaw, or back, along with shortness of breath, sweating (diaphoresis), nausea, vomiting, dizziness, and palpitations.It is crucial to note any history of cardiac illnesses and assess risk factors, including age, gender, smoking, hypertension, diabetes, hyperlipidemia, and a sedentary lifestyle.During physical examination, vital...
18
Atherosclerosis II: Clinical Manifestations and Diagnostic Tests01:27

Atherosclerosis II: Clinical Manifestations and Diagnostic Tests

Atherosclerosis is a progressive disorder that leads to the thickening and narrowing of arterial walls due to plaque buildup. This condition can cause various symptoms depending on the arteries affected:Coronary Artery Disease (CAD): This condition affects the coronary arteries and may lead to chest pain (angina), shortness of breath (dyspnea), heart attacks, and other heart disease symptoms.Cerebrovascular Disease: This affects blood flow to the brain, causing transient ischemic attacks (TIAs)...
21