CME Objectives and Tests 8(3)

The main purpose of the self-assessment program is to help Iranian radiologists and other specialists to update their professional knowledge and skills in clinical and research fields through studying the articles published in the Iranian Journal of Radiology (Iran J Radiol).
These series of Iran J Radiol tests are CME tests, authorized by the Ministry of Health and Medical Education. We suggest you study the articles before and after taking the test, and use other sources as well.
Please write your answers in the provided answer sheet and return it to the journal office. You can also download the answer sheet from, complete it, and E-mail it to


1. Which of the following statements is wrong about cancerous, tuberculous and inflammatory lung masses?
a. There was no significant difference in the radiodensities of masses detected by plain scans between any of the groups.
b. The radiodensities of masses detected by enhanced CT differed significantly among all three groups.
c. The density was significantly lower in lung cancer than in either inflammatory lung pseudotumors or TB.
d. None of the above.

2. An enhancement of higher than 60 Hounsfield units (Hu) in CT scan may indicate?
a. Malignancy mass
b. Inflammatory tumor
c. TB
d. Hamartoma

3. Which is the most practical method for calculating cervical curvature?
a. Curve fit method
b. MCA angle calculation
c. CVT/HOR angle calculation
d. OPT/HOR angle calculation

4. How is MCA angle calculated?
a. CVT/HOR and OPT/HOR angles difference
b. CV2SP/HOR and OPT/HOR angles difference
c. CV2IP/HOR and OPT/HOR angles difference
d. CV4IP/HOR and OPT/HOR angles difference

5. The natural position in which the cephalometries are taken is called
a. NHP (Natural Head Position)
b. SHP (Standard Head Position)
c. SNP (Sella-Nasion Position)
d. ANP (Aurion-Nasion Position)

6. Which projection of aneurysm may be mostly missed by CTA?
a. Anterior
b. Lateral
c. Superior
d. Posterior

7. Which of the following indices is highest regarding application of CTA for intracranial aneurysms?
a. Sensitivity
b. Specificity
c. Positive predictive value
d. Negative predictive value

8. In a patient with definite diagnosis of SAH and negative angiogram, the aneurysm:
a. is absolutely not present.
b. is always present but has been missed.
c. may be discovered later on.
d. is most commonly not found by angiography.

9. Which of the following results about the abnormal brain MRI findings in systemic lupus erythematosus (SLE) patients shows significant difference
between the groups?

a. Neurologically symptomatic versus asymptomatic SLE
b. Males versus female patients
c. SLE patients with longer versus shorter duration of disease
d. None

10. Which of the following MRI findings is in favor of multiple sclerosis rather than SLE in a neurologically asymptomatic patient?
a. Periventricular UBOs
b. Cervical plaque
c. Ovoid T1 hypo and T2 hypo intensity lesions
d. Brain atrophy

11. Which of the below mentioned locations is the most common site of osteoid osteoma?
a. Proximal of the femur
b. Proximal of the tibia
c. Hip joint
d. Proximal of humerus

12. Soft tissue and bone marrow abnormalities around osteoid osteoma is best seen by
a. Isotopic scan
b. MRI
c. CT scan with CM
d. CT scan without CM

13. Which radionuclide bone scan finding is helpful in differentiating between nidus and osteomyelitis?
a. Double density sign
b. Increased uptake around the lesion
c. Increased uptake of cortical bone
d. Increased uptake of bone marrow

14. Tram track appearance on CT scan is seen in
a. Sturge-Weber syndrome
b. optic nerve sheath meningioma
c. Both a and b
d. None

15. Bony hyperostosis is seen in
a. Sinonasal inverted papilloma
b. Meningioma
c. Dural non-Hodgkin's lymphoma (NHL)
d. All of the above

16. Which of the following is correct in hydatid disease?
a. In 70% serologic tests are positive
b. Eosinophilia occurs in 25% of patients
c. It is seen in 1% of Iranians
d. Kidneys are never affected by this organism

17. What is the characteristic site of polypoid cystitis in urinary bladder?
a. Around UVJ
b. Lateral wall
c. Bladder neck
d. Dome portion

18. Precise localization and characterization of omental lipoma usually requires:
a. Radiography
b. Ultrasound
c. Computed Tomography
d. Magnetic Resonance Imaging

19. Which of the following is the best method for diagnosis and follow up of patients who perform UAE for their fibroids?
a. CT scan
b. Sonography
c. MRI
d. MRS

20. Automated segmentation of the fibroids in MR images is useful for:
a. Infarcted fibroids
b. Enhanced fibroids
c. Calcified fibroids
d. All of the above

You can access to the CME answer sheet by clicking here