BIOPSY TECHNIQUES Flashcards

1
Q

what are the skin/soft biopsy techniques?

A

incisional
excisional
shave
punch

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2
Q

needle biopsy techniques?

A

fine needle aspiration
core needle biopsy
stereotactic core needle biopsy
vacuum assisted core biopsy

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3
Q

main points to focus when doing a biopsy?

A
type 
size
location
appearance
fluid
patient morbidities

*derm referral

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4
Q

when do we biopsy?

A

atypical appearing lesions

typical appearing lesions

progressive, longstanding lesions

non-healing ulcers

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5
Q

size of normal tissue depends on?

A

need, suspected malignancy

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6
Q

indications for a excisions biopsy?

A

curative procedure needed

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7
Q

when are sutures needed for a punch biopsy?

A

above 3 mm typically requires suture for closure

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8
Q

when is incisional punch biopsy used?

A

non malignant lesions, or if you don’t know

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9
Q

shave biopsy used for?

A

skin tags
actinic keratosis
seborrheic keratosis

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10
Q

violating bone cortex predisposes for?

*percutaneous biopsies have lower risk of complications, what is it?

**multiple core obtained through a single bone window?

A

pathologic fracture

only if no extra osseous extension

*0-10% compared with up to 16% respectively

**reduces risk of iatrogenic fracture

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