Soft Tissue Lesions and Biopsy Techniques Flashcards
what are biopsies used for
sample of tissue for histopathological analysis
confirm diagnosis
determine prognosis
what questions need to be asked before doing a biopsy
should I biopsy this
why biopsy it
what question am i asking pathologist
what are the tissue sampling techniques
aspiration
fine needle aspiration biopsy
what is needle aspiration used for
blood sample
abscess sample (anaerobic species)
what is fine needle biopsy used for
solid lesions
what are the types of surgical biopsy
excisional biopsy
incisional biopsy
punch biopsy
what is an excisional biopsy
remove all of clinically abnormal tissue
for benign and discrete lesions
what is an incisional biopsy
representative tissue sample
larger lesions
uncertain diagnosis
what is punch biopsy
incisional
removes core of tissue
minimal damage
what do you consider when selecting an area to biopsy
area must be large enough
must be representative
more than one biopsy
consider referral
what lesions must be referred
suspicious lesions
lumps in upper lip
how do you send a sample to pathology
place in 10% formalin immediately
suture on mesial/distal side for orientation
include clinical information
pathology form
by courier not post
why can you NOT use gauze for biopsy samples
they distort the sample
what material can be sued to place a sample on
filter paper
what is a fibrous epulis
swelling from gingivae
hyperplastic response to irritation
smooth surface, rounded swelling
pink and pedunculated
what biopsy is used for a fibrous epulis
excisional biopsy
how do you treat a fibrous epulis
biopsy
coe pack dressing
remove source of irritation (calculus)
what is a fibrous overgrowth
fibroepithelial polyp
from frictional irritation or trauma
semi pedunculated or sessile
pink smooth surface
what is a giant cell epulis
peripheral giant cell granuloma
multi nucleated giant cells in vascular stroma
deep red/purple
need x-ray
who gets giant cell epulis
teenagers in anterior mouth
how do you treat giant cell epulis
surgical excision with curettage of base
coe pack dressing
what is a haemangioma
haematoma
developmental overgrowths
exophytic
blue in colour
pressure causes loss of colour
how do you treat a haemangioma
surgical removal or cryotherapy
what is a lipoma
benign neoplasm of fat
soft swelling
pale yellow
sessile
