Cardiomyopathy
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Questions and Answers

Which type of cardiomyopathy is characterized by diastolic dysfunction?

  • Hypertrophic cardiomyopathy (correct)
  • Arrhythmogenic cardiomyopathy
  • Dilated cardiomyopathy
  • Unclassified cardiomyopathy

What is the most common type of cardiomyopathy?

  • Dilated cardiomyopathy (correct)
  • Hypertrophic cardiomyopathy
  • Arrhythmogenic cardiomyopathy
  • Restrictive cardiomyopathy

Which genetic mutation is associated with Dilated Cardiomyopathy?

  • Mutation in LMNA
  • Mutation in MYH7
  • Mutation in TTN (correct)
  • Mutation in DSP

What is the histological feature commonly seen in Dilated Cardiomyopathy?

<p>Myocyte hypertrophy (A)</p> Signup and view all the answers

Which type of cardiomyopathy shows LV hypertrophy with asymmetrical thickening of muscles?

<p>Hypertrophic cardiomyopathy (C)</p> Signup and view all the answers

Which type of cardiomyopathy is associated with infiltration or fibrosis of ventricles without chamber enlargement?

<p>Restrictive cardiomyopathy (C)</p> Signup and view all the answers

What is the characteristic feature of Dilated Cardiomyopathy on histology?

<p>Interstitial fibrosis (B)</p> Signup and view all the answers

Which type of cardiomyopathy results in dysfunction of ventricular contraction?

<p>Dilated cardiomyopathy (D)</p> Signup and view all the answers

What is the common symptom associated with heart failure in Dilated Cardiomyopathy?

<p>Shortness of breath (D)</p> Signup and view all the answers

Which chamber enlargement is observed in Dilated Cardiomyopathy?

<p>All chambers (A)</p> Signup and view all the answers

What is the characteristic feature of Hypertrophic Cardiomyopathy on echocardiography?

<p>Asymmetrical septal hypertrophy (C)</p> Signup and view all the answers

Which type of cardiomyopathy is associated with mutations in genes that code for cardiac cytoskeletal, myofibrillar, and nuclear membrane proteins?

<p>Dilated cardiomyopathy (A)</p> Signup and view all the answers

Which of the following is a recognized cause of dilated cardiomyopathy?

<p>Alcohol (C)</p> Signup and view all the answers

What is the most likely diagnosis for a patient with dyspnea, lower extremity edema, low-voltage QRS complexes, markedly increased ventricular thickness, enlargement of both atria, and a normal left ventricular ejection fraction?

<p>Cardiac amyloidosis causing restrictive cardiomyopathy (C)</p> Signup and view all the answers

Which of the following is a recognized cause of hypertrophic cardiomyopathy?

<p>Hypertension (D)</p> Signup and view all the answers

What is the most common mutation associated with hypertrophic cardiomyopathy?

<p>MYBP and MYH7 (C)</p> Signup and view all the answers

Which of the following is a recognized complication of hypertrophic cardiomyopathy?

<p>Sudden cardiac death (C)</p> Signup and view all the answers

What is a distinguishing feature of restrictive cardiomyopathy on an electrocardiogram (ECG)?

<p>Low voltage QRS complexes (A)</p> Signup and view all the answers

Which of the following is a recognized cause of restrictive cardiomyopathy?

<p>Amyloidosis (D)</p> Signup and view all the answers

What is the pathologic hallmark of arrhythmogenic right ventricular cardiomyopathy?

<p>Myocardial thinning with fibrofatty deposits (C)</p> Signup and view all the answers

Which of the following is a recognized symptom of Takotsubo cardiomyopathy?

<p>Chest pain (B)</p> Signup and view all the answers

What is the most likely diagnosis for a patient with stress-induced cardiomyopathy, severe emotional or physical events, and no significant coronary artery stenosis?

<p>Takotsubo cardiomyopathy (A)</p> Signup and view all the answers

Which of the following is a recognized cause of arrhythmogenic right ventricular cardiomyopathy?

<p>Myocyte necrosis (A)</p> Signup and view all the answers

What is the gold standard for the demonstration of amyloid in tissue sections?

<p>Congo red stain with apple green birefringence under polarized light (D)</p> Signup and view all the answers

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