oncology

Question 1

needle core, wedge, and punch biopsies are what time

Answer 1

incisional

Question 2

T/F

excisional biopsies are pre-treatment

Answer 2

false – post treatment

Question 3

What type of biopsy should you use if the treatment would be altered by the biopsy results

Answer 3

pre treatment - incisional

Question 4

T/F

tru cut biopsy can be used on any accessible mass

Answer 4

TRUE

Question 5

T/F

tru cut will maintain the structural integrity of the tissue

Answer 5

true

Question 6

what size punch biopsy to procure a diagnostic sample

Answer 6

> 6 mm

Question 7

do not use punch biopsy for this type of mass

Answer 7

hypodermal – tissue could shift and undetected hemorrhage may occur

Question 8

preferred biopsy for ulcerated or necrotic tumors

Answer 8

wedge

Question 9

what is important to remember about doing a wedge biopsy

Answer 9

entire biopsy tract must be removed

Question 10

use _____ retractors to maintain tissue retraction for deeper lying tumors

Answer 10

gelpi

Question 11

which biopsy method is the best for a splenic tumor

Answer 11

excisional - remove entire spleen

Question 12

T/F

after an excisional biopsy, place a passive drain.

Answer 12

FALSE - this will disseminate the cells throughout the entire tract… also eliminate all dead space because seromas are bad

Question 13

classification system of surgical dosing

Answer 13

enneking system

Question 14

only real application of intracapsular excision

Answer 14

lipomas or debulking

Question 15

goes through the pseudocapsule or perilesional zone surrounding the tumor

Answer 15

marginal

Question 16

marginal lateral marginas for carcinomas

Answer 16

<1 cm

Question 17

marginal lateral marginas for mast cell tumors

Answer 17

< 2 cm

Question 18

marginal lateral marginas for soft tissues and bone sarcomes

Answer 18

< 3 cm

Question 19

marginal lateral marginas for FISS

Answer 19

<5 cm

Question 20

lateral margins for wide excisions in the enneking system

Answer 20

> 1 - carcinomas
2 - mast cell tumors
3 soft tissues
5 feline iss

Question 21

enneking system - radical

Answer 21

removal of entire compartment or body part

Question 22

T/F

when labeling using enneking classifcations, the largest margin used gives the name

Answer 22

FALSE - narrow margin trumps all

Question 23

general rule for mast cell tumor margins

Answer 23

3 cm lateral and 1 fascial plane deep

Question 24

modified mast cell tumor proportions technique

Answer 24

widest diameter of the tumor used for the lateral margins for excision and 1 fascial plane deep

complete margins obtained in 82% of cases

Question 25

benign tumor margins

Answer 25

1 cm lateral and deep

Question 26

soft tissue sarcoma surgical margins

Answer 26

3 cm lateral and fascial plane deep or 2 muscle planes deep

Question 27

what dye system and what colors of dye are used for inking surgical margins

Answer 27

davidson dye system yellow or black ink all cut surfaces but not the skin

Question 28

biopsy tissue to formalin ration

Answer 28

1:10

Question 29

appropriate fixation tissue thickness

Answer 29

0.5 - 1.0 cm

Question 30

how long can specimen be held at the clinic before they must be submitted to lab

Answer 30

24 hours

Question 31

R0 R1 R2

Answer 31

R0 - no residual tumor R1 - microscopic residual tumor R2 - macroscopic residual tumor