BIOPSY TECHNIQUES

Question 1

what are the skin/soft biopsy techniques?

Answer 1

incisional
excisional
shave
punch

Question 2

needle biopsy techniques?

Answer 2

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

Question 3

main points to focus when doing a biopsy?

Answer 3

type 
size
location
appearance
fluid
patient morbidities

*derm referral

Question 4

when do we biopsy?

Answer 4

atypical appearing lesions

typical appearing lesions

progressive, longstanding lesions

non-healing ulcers

Question 5

size of normal tissue depends on?

Answer 5

need, suspected malignancy

Question 6

indications for a excisions biopsy?

Answer 6

curative procedure needed

Question 7

when are sutures needed for a punch biopsy?

Answer 7

above 3 mm typically requires suture for closure

Question 8

when is incisional punch biopsy used?

Answer 8

non malignant lesions, or if you don’t know

Question 9

shave biopsy used for?

Answer 9

skin tags
actinic keratosis
seborrheic keratosis

Question 10

violating bone cortex predisposes for?

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

**multiple core obtained through a single bone window?

Answer 10

pathologic fracture

only if no extra osseous extension

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

**reduces risk of iatrogenic fracture