Teaching Pearls

• Etiologies for Dilated Cardiomyopathy
  • Ischemic
    • Most common cause
  • Stress-induced
    • “Broken Heart syndrome”
    • Takotsubo cardiomyopathy
    • Middle to older age females with recent stressor event
  • Infectious
    • Chagas Disease
      • Most common cause of DCM in those from south and central America
    • Lyme’s Disease
      • More classically associated with heart block
    • Viral
      • Parvovirus B19
      • HIV
      • Coxackie
      • CMV
      • HHV-6
      • adenovirus
  • Toxins
    • Cocaine, meth, alcohol
    • Web Beriberi – thiamine deficiency
  • Medications
    • Chemotherapy (anthracyclines)
  • Idiopathic
• Ground Glass Opacities on CT
  • Due to filling of alveolus (airspace disease) or interstitial lung disease
  • Acute findings
    • Edema
      • Heart failure
      • ARDS
    • Pulmonary hemorrhage
    • Pneumonia (viral, mycoplasma, PCP)
    • Acute eosinophilic PNA
  • Chronic findings
    • Hypersensitivity pneumonitis
    • Organizing pneumonia
    • Alveolar proteinosis
    • Chronic eosinophilic pneumonia
    • Bronchoalveolar carcinoma
    • Lung fibrosis