chapter 12: clinical artifacts

Question 1

fdg uptake on a patient with previous radiotherapy appears as

diffuse, intense marrow uptake

decreased marrow uptake

focal uptake in the affected area

photopenia in the affected area

Answer 1

decreased marrow uptake

Question 2

high z material causes a photopenic region on

AC images only
NAC images only
both NAC and AC images
neither NAC or AC images

Answer 2

both NAC and AC images

Question 3

brown fat is found in all of these regions except

neck
chest
back
axilla
perinephric regions
intercostal space
paraaortic regions

Answer 3

back

Question 4

brown fat uptake may be caused by all of the following except

shivering
tension
epinephrine
ephedrine
nicotine

Answer 4

epinephrine

Question 5

glucose is completely reabsorbed by the

loop of henle
proximal tubules
distal tubules
nephrons

Answer 5

proximal tubules

Question 6

uptake in virchow’s node is most associated with

NSCLC
multiple myeloma
acute lymphocytic leukemia
advanced stage prostate cancer

Answer 6

advanced stage prostate cancer

Question 7

virchow’s node is located

behind the sternum
in the left axilla
in the right axilla
in the left supraclavicular region
in the right supraclavicular region

Answer 7

in the left supraclavicular region

Question 8

rpx injection should be avoided in the left arm when imaging with

f18 piflufolastat (pylarify)
f18 axumin
f18 flucicolvine
f18 estradiol

Answer 8

f18 flucicolvine

Question 9

all are part of the normal biodistribution of somatostatin analog rpxs except

liver
spleen
adrenal glands
pancreas
thyroid

Answer 9

pancreas