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Soft Tissue Calcifications and Ossifications
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Soft Tissue Calcifications and Ossifications

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Questions and Answers

What is the primary mechanism of formation for dystrophic and iatrogenic calcifications?

  • Deposition of calcium in normal tissue despite normal serum calcium and phosphate levels
  • Generalized calcifications in normal tissue
  • Deposition of calcium salts primarily in the skeleton
  • Occur in damaged or degenerated tissue (correct)

    • What causes metastatic (metabolic) calcifications?

  • Deposition of calcium salts resulting from a systemic metabolic disorder (correct)
  • Occur in damaged or degenerated tissue
  • Deposition of calcium in normal tissue despite normal serum calcium and phosphate levels
  • Deposition of calcium salts primarily in the skeleton

    • What is heterotopic calcification?

  • Unorganized deposition of calcium salts in soft tissue (correct)
  • Generalized calcifications in normal tissue
  • Deposition of calcium in normal tissue despite normal serum calcium and phosphate levels
  • Deposition of calcium salts primarily in the skeleton

    • How are idiopathic calcifications classified?

    <p>Deposition of calcium in normal tissue despite normal serum calcium and phosphate levels</p> Signup and view all the answers

    What are the clinical features associated with heterotopic calcification or ossification?

    <p>May not produce signs or symptoms; most often detected as incidental findings during imaging examinations made for other purposes</p> Signup and view all the answers

    What is the primary composition of the calcium salts deposited in soft tissue calcifications?

    <p>Calcium phosphate</p> Signup and view all the answers

    What percentage of soft-tissue calcifications are accounted for by dystrophic and iatrogenic calcifications?

    <p>95–98%</p> Signup and view all the answers

    What does metastatic (metabolic) calcifications refer to?

    <p>Generalized calcifications in normal tissue due to systemic metabolic disorder</p> Signup and view all the answers

    What is the range of calcium-phosphate product that leads to metastatic (metabolic) calcifications?

    <p>60–70</p> Signup and view all the answers

    What is the term used for the unorganized deposition of calcium salts in soft tissue?

    <p>Heterotopic calcification</p> Signup and view all the answers

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