Oncology Flashcards
Organ specific radiopharmaceuticals for thyroid testing are 99m Tc and 123 / 131 I-NaI (T/F)
TRUE
The main indication for scintigraphy of thyroid tissue are benign diseases of the
thyroid gland (T/F)
FALSE
Scintigraphy of the adrenal medulla serves to confirm the diagnosis of
pheochromocytoma and other paragangliomas in patients with biochemically
proven disease (T/F)
TRUE
Positron emission tomography is a modern diagnostic and research visualization
technique (T/F)
TRUE
PET is a non-invasive technique that examines biochemical, metabolic and
receptor processes (T/F)
TRUE
Positron emitters emit gamma radiation (T/F)
FALSE
Of the positron emitters, 11 C is most commonly used in clinical practice (T/F)
FALSE
Positron emitters are short-lived radionuclides (T/F)
TRUE
The most common way to obtain positron emitters is in a nuclear reactor (T/F)
FALSE
Positron emitters are incorporated into numerous biomolecules (T/F)
TRUE
The half-life of 18 F is 120 minutes (T/F)
TRUE
Positron emitters can be obtained in the generator (T/F)
TRUE
Tumor cells have elevated intracellular concentrations of hexokinase, which
phosphorylate glucose and 18 F-FDG thereby trapping them within the cell (T/F)
TRUE
18 F-FDG-mechanism of accumulation in tumors:
a) Elevated levels of energy-dependent transmembrane transport protein (GLUT)
b) Tumor cells have elevated intracellular hexokinase concentration
c) Increased perfusion in tumors
d) All of the above (a, b, c)
D
18 F-FDG accumulates:
a) Only in malignant tumors
b) In malignant tumors and in infectious / inflammatory regions
c) Only in benign tumors
d) All of the above (a, b, c)
B
18 F-FDG is excreted:
a) Through the gastrointestinal tract
b) Through tubular secretion of the kidney
c) Free filtration into the glomerulus of the kidney
d) Glomerular filtration through the kidneys, of which one part is reabsorbed
D
PET is used in:
a) Oncology
b) Neurology
c) Cardiology
d) All of the above (a, b, c)
D
18 F-sodium fluoride is used:
a) For imaging liver tumors
b) For PET diagnostics of the skeletal system
c) For the treatment of bone tumors
d) For PET brain diagnostics
B
The positron emitters obtained in the generator are
a) 13 N
b) 11 C
c) 13 N
d) 82 Rb and 68 Ga
IDK FAM
Positron emission tomography is based on the physical principle:
a) Scintillations
b) Ionization
c) Annihilation
d) All of the above (a, b, c)
C
Indication for 18 F-FDG PET in breast carcinoma is:
a) detection od primary tumor
b) detection of lymh nodes involvements
c) detection of distant metastases after the treatment
d) Under a) and c)
C
Indication for 18 F-FDG PET in colorectal cancer:
a) rising value of CEA after the treatment
b) diagnosis of recurren disease
c) diagnosis tumor primary
d) Under a) and b)
A
Indication for 18 F-FDG PET in thyrpod carcinoma is:
a) negative posttreatment whole body scan
b) risig Tg values
c) evaluationa of disease progresion after the surgery
d) Under a) and b)
D
Sentinel lymph nodes labeling is useful for:
a) M staging
b) N taging
c) T satiging
d) Under a and c)
B
Sentinel lymph nodes labeling allows
a) radical surgery of lymph nodes
b) minimally invasive surgery of lymph nodes
c) better surgery of primary tumor
d) Under a) and b)
B
