BIOPSY TECHNIQUES Flashcards
what are the skin/soft biopsy techniques?
incisional
excisional
shave
punch
needle biopsy techniques?
fine needle aspiration
core needle biopsy
stereotactic core needle biopsy
vacuum assisted core biopsy
main points to focus when doing a biopsy?
type size location appearance fluid patient morbidities
*derm referral
when do we biopsy?
atypical appearing lesions
typical appearing lesions
progressive, longstanding lesions
non-healing ulcers
size of normal tissue depends on?
need, suspected malignancy
indications for a excisions biopsy?
curative procedure needed
when are sutures needed for a punch biopsy?
above 3 mm typically requires suture for closure
when is incisional punch biopsy used?
non malignant lesions, or if you don’t know
shave biopsy used for?
skin tags
actinic keratosis
seborrheic keratosis
violating bone cortex predisposes for?
*percutaneous biopsies have lower risk of complications, what is it?
**multiple core obtained through a single bone window?
pathologic fracture
only if no extra osseous extension
*0-10% compared with up to 16% respectively
**reduces risk of iatrogenic fracture