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Questions and Answers
What is the usual approach for small lesions (less than 1cm in diameter) in excisional biopsy?
What is the principle of excisional biopsy?
What type of anesthesia is typically used around the lesion peripheries before excisional biopsy?
How should the length of the incision compare to its width in excisional biopsy?
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Which biopsy technique involves the removal of a tissue core using a specific type of needle?
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What is the main difference between excisional biopsy and incisional biopsy?
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In excisional biopsy, what is the recommended length of the incision in relation to its width for tension-free primary closure?
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When is excisional biopsy the usual approach for small lesions (less than 1cm in diameter)?
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What is the principle of excisional biopsy?
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What type of anesthesia is typically used around the lesion peripheries before excisional biopsy?
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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.
