MDCB Practice Set 4 - Test 12 Exam
Questions With 100% Verified Answers
1. Which of the following histologies is the most aggressive with the
lowest survival rate?
A. Glioblastoma
B. Medulloblastoma
C. Ependymoma
D. Juvenile pilocytic astrocytoma -
correct answer ✅A
2. The law of Bergonie and Tribondeau states that ionizing radiation
is most effective against cells
that have a:
A. long mitotic life and not actively mitotic and undifferentiated.
B. long mitotic life and actively mitotic and undifferentiated.
C. short mitotic life and actively mitotic and differentiated.
D. short mitotic life and not actively mitotic and differentiated. -
correct answer ✅B
3. Which of the following is true of Hodgkin's Lymphoma?
A. It is typically seen in young adult patients.
B. It typically involves bone marrow.
,MDCB Practice Set 4 - Test 12 Exam
Questions With 100% Verified Answers
C. It does not respond to chemotherapy.
D. It is commonly extranodal in presentation. -
correct answer ✅A
4. In regard to the treatment of soft tissue sarcoma of the
extremities, which one of the following statements is true?
A. Tumor grade and size are less important than histology in
determining the radiation field.
B. The initial large field should encompass just the operative scar
with 2 cm margin both proximally and distally.
C. Radiation therapy post wide excision is suggested to have similar
local control as surgical amputation/disarticulation.
D. Post-operatively, the highest dose that should be given to
minimize morbidity is 5000 cGy. -
correct answer ✅C
5. A patient is receiving radiation to the chest. The calculated dose
to the tumor while "on cord" is 35 Gy at 2.5 Gy per fraction. The
cord is receiving 3 Gy per fraction. Assuming alpha/beta of 3 for late
effects, what is the cord equivalent dose at 2 Gy per fraction?
A. 35 Gy
B. 40 Gy
, MDCB Practice Set 4 - Test 12 Exam
Questions With 100% Verified Answers
C. 45 Gy
D. 50 Gy -
correct answer ✅D
6. When treating carcinoma of the bladder, the superior border of
the radiation field usually does NOT extend superior to S-1. This is
to reduce toxicity to the:
A. pelvic crest.
B. small bowel.
C. kidney.
D. ureters. -
correct answer ✅B
7. The automated delineation of the Biological Target Volume is
generated by using the:
A. Doppler ultrasound to measure blood flow around the target.
B. FDG-PET(CT) and 18F to measure the tissue metabolism.
C. CBCT with equal resolution in all directions.
D. T2 Flair MR image to enhance fluids around the target. -
correct answer ✅B
Questions With 100% Verified Answers
1. Which of the following histologies is the most aggressive with the
lowest survival rate?
A. Glioblastoma
B. Medulloblastoma
C. Ependymoma
D. Juvenile pilocytic astrocytoma -
correct answer ✅A
2. The law of Bergonie and Tribondeau states that ionizing radiation
is most effective against cells
that have a:
A. long mitotic life and not actively mitotic and undifferentiated.
B. long mitotic life and actively mitotic and undifferentiated.
C. short mitotic life and actively mitotic and differentiated.
D. short mitotic life and not actively mitotic and differentiated. -
correct answer ✅B
3. Which of the following is true of Hodgkin's Lymphoma?
A. It is typically seen in young adult patients.
B. It typically involves bone marrow.
,MDCB Practice Set 4 - Test 12 Exam
Questions With 100% Verified Answers
C. It does not respond to chemotherapy.
D. It is commonly extranodal in presentation. -
correct answer ✅A
4. In regard to the treatment of soft tissue sarcoma of the
extremities, which one of the following statements is true?
A. Tumor grade and size are less important than histology in
determining the radiation field.
B. The initial large field should encompass just the operative scar
with 2 cm margin both proximally and distally.
C. Radiation therapy post wide excision is suggested to have similar
local control as surgical amputation/disarticulation.
D. Post-operatively, the highest dose that should be given to
minimize morbidity is 5000 cGy. -
correct answer ✅C
5. A patient is receiving radiation to the chest. The calculated dose
to the tumor while "on cord" is 35 Gy at 2.5 Gy per fraction. The
cord is receiving 3 Gy per fraction. Assuming alpha/beta of 3 for late
effects, what is the cord equivalent dose at 2 Gy per fraction?
A. 35 Gy
B. 40 Gy
, MDCB Practice Set 4 - Test 12 Exam
Questions With 100% Verified Answers
C. 45 Gy
D. 50 Gy -
correct answer ✅D
6. When treating carcinoma of the bladder, the superior border of
the radiation field usually does NOT extend superior to S-1. This is
to reduce toxicity to the:
A. pelvic crest.
B. small bowel.
C. kidney.
D. ureters. -
correct answer ✅B
7. The automated delineation of the Biological Target Volume is
generated by using the:
A. Doppler ultrasound to measure blood flow around the target.
B. FDG-PET(CT) and 18F to measure the tissue metabolism.
C. CBCT with equal resolution in all directions.
D. T2 Flair MR image to enhance fluids around the target. -
correct answer ✅B
