Oral Surgery · single question

For an incisional biopsy — when is this type of biopsy preferred over an excisional biopsy?

When the lesion is large (>1cm) and complete removal may compromise function or aesthetics
When the lesion is in the posterior oral cavity
When the lesion is benign and malignancy is not suspected
When the lesion is small and completely removable

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Correct answer: A. When the lesion is large (>1cm) and complete removal may compromise function or aesthetics

A. Correct. An INCISIONAL biopsy removes only a representative portion of a lesion and is indicated for: (1) LARGE lesions where complete excision is not practical; (2) Lesions where malignancy is suspected (to confirm diagnosis before definitive treatment); (3) Lesions in areas where complete removal could compromise function or esthetics. An incisional biopsy provides tissue for diagnosis while leaving the lesion for definitive treatment planning.
B. Location alone does not determine biopsy type — size and clinical suspicion guide the decision.
C. Small, apparently benign lesions are better managed with excisional biopsy for complete removal and diagnosis.
D. Small lesions that are completely removable are better managed with EXCISIONAL biopsy.

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