The best type of x-ray to locate free abdominal air is:
A. A posteroanterior view of the chest.
B. A flat and upright view of the abdomen.
C. Computed tomograph (CT) of the abdomen.
D. A lateral decubitus x-ray, right side up.
The most helpful diagnostic radiographic procedure in small bowel obstruction is:
A. CT of the abdomen.
B. Contrast study of the intestine.
C. Supine and erect x-rays of the abdomen.
D. Ultrasonography of the abdomen.
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The most commonly used imaging method for diagnosis of acute cholecystitis is:
A. CT of the abdomen.
B. Ultrasonography of the gallbladder.
C. Oral cholecystogram.
D. Radionuclide (HIDA) scan of the gallbladder.
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A patient develops an acute febrile illness with shivers, nonproductive cough, and pleuritic chest pain. Five days later, he presents to the emergency room after abruptly having "coughed up" nearly a cup of
blood-stained sputum. Which of the following is most likely to be seen on chest x-ray?
A. A cavity with a fluid level
B. Blunting of diaphragmatic costal angles
C. Complete opacification of one lobe with no additional findings
D. Patchy consolidation centered on bronchi
E. Prominent bronchi that can be followed far out into the lung fields
Answer
A 65 year old male with a 20 pack/year smoking history and a 4 centimeter peripheral lung nodule on chest X-ray presents to your primary care practice. You should
a. schedule him for bronchoscopy
b. schedule him for an open thoracotomy
c. schedule him for a computerized tomography guided needle aspiration
d. send his sputum for analysis as sputum is positive in greater than 95% of cases of cancer
e. start antibiotics
Answer
Why does cortical bone produce no signal on Magnetic Resonance Imaging?
a. signal production depends on the absence of significant pathology
b. osteoid contains no free hydrogen
c. mineralized bone contains no free hydrogen
d. bone marrow contains no free hydrogen
e. articular cartilage contains no free hydrogen
AnswerTags:
MCQ, Radiology, MRI, Magnetic Resonance Imaging
A primary tumor arises in the medullary cavity of the cortex of the tibia. It fills the tibial diaphysis, but does not erode the cortex significantly. If the tumor is less radio-dense than skeletal muscle but more radiodense than fat, what will be seen on the X-ray?
a. a permeative lesion with indistinct borders
b. a geographically circumscribed lesion with perilesional sclerosis
c. a circumscribed lesion without sclerosis and a sharp transition zone
d. an ill-defined lesion with unclear amounts of bony destruction
e. virtually no abnormality
Answer
Regarding venous thromboembolic disease,
a. Deep venous thrombosis and pulmonary emboli cannot be diagnosed using MRI.
b. D-dimer assays have a high positive predictive value in suspected venous thromboembolic disease.
c. Duplex ultrasound is highly sensitive and specific investigation for symptomatic proximal leg deep venous thrombosis.
d. The more distal the leg venous thrombosis, the more risk for pulmonary embolism.
e. The dose of VQ (ventilation perfusion) scan is more than that for a CTPA (CT pulmonary angiogram).
Answer
Regarding thalassaemia,
a. Skeletal changes are unusual before 6 months of age.
b. 'Hair-on-end' skull appearance is characteristic for thalassaemia.
c. Ethmoid air cells are usually present.
d. Earliest changes are seen in the hand/feet bones.
e. MRI is sensitive in the early diagnosis of chelator toxicity in the skeleton
Answer
Regarding the injuries of the knee joint,
a. In pivot shift injury, the PCL is commonly injured.
b. Dashboard injury commonly results in the disruption of the ACL.
c. In lateral patellar dislocation, the oedema is seen in the inferolateral patella and the anterior aspect of the lateral femoral condyle.
d. In lateral patellar dislocation, the lateral patello-femoral ligament may be injured.
e. 'Kissing contusions' on the anterior aspects of the femur and tibia are seen in hyperextension injury.
AnswerTags:
MCQ, Radiology, Knee Injury
Regarding the benign bone tumours of the ribs,
1. Enchondroma (EC) are the most common benging tumours of the ribs.
2. Fibdrous dysplasias (FD) are usually seen in the posterior or lateral aspects of the ribs.
3. MRI is not sensitive in diagnosing the non-calcified cartilage of enchondroma.
4. In osteochondromas (OC), cartilage cap of less than 10mm is highly suspicious for malignant transformation.
5. Aneurysmal bone cysts (ABC) are commonly seen in the anterior aspect of the ribs.
Answer
Tags:
MCQ, Radiology, Ribs, Tumors
Regarding central neurocytoma (CN) true is
a. CN are typically located within the fourth ventricle.
b. Light microscopic appearance is similar to meningioma.
c. Most of the CNs present after 60 years of age.
d. The attachment to the lateral wall of the lateral ventricle is charactersitic for CN.
e. Intratumoral calcification is common.
AnswerTags:
MCQ, Radiology, Neurocytoma
Regarding endometrial carcinoma,
a. CT is less accurate than endovaginal ultrasound in the diagnosis of myometrial invasion.
b. Zonal uterine anatomy is best seen on the T1WI.
c. Endometrial carcinoma is typically of low signal on the T2WI.
d. Endometrial carcinoma is of high signal compared to cervical stroma on the T2WI.
e. Lung is the most common site of distant metastasis
AnswerTags:
MCQ, Radiology, Endometrial Cancer
Regarding the endometrial carcinoma,
a. In Europe, endometrial carcinoma is second most common gynaecological malignancy, following cervical carcinoma.
b. In the UK, most of the endometrial carcinomas present late
c. FIGO Staging is based on MRI the of the pelvis and CT scan of the abdomen.
d. Endometrial carcinoma accounts for approximately 10% of postmenopausal bleeding
e. The incidence of nodal metastasis is 3% with deep myometrial invasion (stage IC).
AnswerTags:
MCQ, Radiology, Endometrial Cancer
Regarding posterolateral corner injuries of the knee all are true except
a. Posterolateral corner injuries are less common than medial knee injuries
b. Arcuate fracture is a strong indicator of posterior cruciate ligament tear
c. Segond fracture is a strong indicator of posterior cruciate ligament tear
d. Popliteus myotendinous injury is usually associated with other posterolateral corner injuries
e. Lateral collateral ligament injury is a part of posterolateral corner injuries
AnswerTags:
MCQ, Radiology, Knee Injuries
Regarding traumtic diaphragmatic rupture (TDI),
A. TDIs most commonly occur after penetrating trauma
B. Left diaphragm is less commonly ruptured than the right
C. About 50% of TDI are diagnosed acutely
D. The most commonly herniated organ is spleen
E. 'Dependent viscera sign' is a very sensitive CT sign in the diagnosis of TDI
AnswerTags:
MCQ, Radiology, Diaphragm, Blunt Trauma Abdomen
Regarding Angiomyolipomas (AML),
A. AMLs associated with tuberous sclerosis are more common than sporadic ones
B. Males are more commonly affected than Females in both sporadic type and in those with tuberous sclerosis
C. AMLs are associated with neurofibromatosis
D. The most common complication is malignant transformation
E. AMLs are not suitable for embolization
Answer
Regarding epidermoid cysts of the testis,
A. Epidermoid cysts are one of the common cysts of the testis
B. Epidermoid cysts are commonly associated infertility
C. Epidermoid cysts are commonly multiple
D. The ultrasonic appearances are characteristic for epidermoid cysts
E. On Gd administration, epidermoid cysts usually enhance
AnswerTags:
MCQ, Radiology, Testis, USG, Epidermoid cyst
