Biopsy Basics Quiz
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Questions and Answers

What is the usual approach for small lesions (less than 1cm in diameter) in excisional biopsy?

  • Scraping of the lesion for cytology
  • Excision of the entire lesion (correct)
  • Incision of the lesion for tissue sampling
  • Aspiration of cells using a needle
  • What is the principle of excisional biopsy?

  • Aspiration of cells from the lesion
  • Partial removal of the lesion for analysis
  • Scraping the surface of the lesion
  • Excision of the entire lesion with surrounding tissue (correct)
  • What type of anesthesia is typically used around the lesion peripheries before excisional biopsy?

  • Local anesthesia with vasoconstrictor (correct)
  • Topical anesthesia
  • Regional anesthesia
  • General anesthesia
  • How should the length of the incision compare to its width in excisional biopsy?

    <p>3 times its width</p> Signup and view all the answers

    Which biopsy technique involves the removal of a tissue core using a specific type of needle?

    <p>True cut needle biopsy</p> Signup and view all the answers

    What is the main difference between excisional biopsy and incisional biopsy?

    <p>Excisional biopsy involves the removal of the entire lesion, while incisional biopsy involves the removal of only a part of the lesion.</p> Signup and view all the answers

    In excisional biopsy, what is the recommended length of the incision in relation to its width for tension-free primary closure?

    <p>3 times its width</p> Signup and view all the answers

    When is excisional biopsy the usual approach for small lesions (less than 1cm in diameter)?

    <p>When the lesion is clinically benign</p> Signup and view all the answers

    What is the principle of excisional biopsy?

    <p>Excision of the entire lesion with 2 to 3mm of normal appearing surrounding tissue</p> Signup and view all the answers

    What type of anesthesia is typically used around the lesion peripheries before excisional biopsy?

    <p>Local anesthesia with vasoconstrictor</p> Signup and view all the answers

    Study Notes

    Definition of Biopsy

    • Biopsy involves removing tissue from living organisms for various forms of analysis, including microscopic, chemical, and bacterial evaluations.

    Indications for Biopsy

    • Confirming clinical impressions of lesions is a primary reason for biopsy.
    • Biopsy is recommended if inflammatory lesions do not respond to conservative treatments after 10-14 days.
    • It assists in determining definitive treatment for identified lesions.
    • Useful for diagnosing intraosseous lesions that are clinically or radiographically unidentifiable.
    • Helps in assessing abnormal tissues from the oral cavity, such as cysts and granulomas.

    Contraindications for Biopsy

    • Should not be performed on inflammatory lesions of allergic, viral, fungal, or bacterial origin.
    • Biopsies are not suitable for normal anatomical or racial variants (e.g., linea alba, physiologic pigmentation).
    • Avoid biopsies in lesions resulting from recent trauma.
    • Care must be taken if lesions are near vital anatomical structures, including vascular, neural, or ductal components.
    • Lesions that resemble vascular formations, such as hemangiomas, caution against biopsy.
    • Incisional biopsies are generally discouraged for pigmented lesions.

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    Description

    "Biopsy Basics Quiz: Test Your Knowledge on Tissue Sampling and Analysis" Test your understanding of the definition, indications, and importance of biopsies in diagnosing and treating medical conditions with this informative quiz.

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