Second Year (third rotation) - Stanford Medicine



Second Year (Third Rotation)

Pediatric Radiology In-Service Exam

For multiple choice questions, indicate the single best answer.

1. Avulsion of the patellar tendon at the tibial tuberosity is called:

a. Sinding Larson Johannson syndrome

b. Kohlers disease

c. Osgood Schlatter disease

2. Osteomyelitis in a child most commonly affects the:

d. Metaphysis

e. Epiphysis

f. Diaphysis

3. The differential diagnosis of osseous metastases in a child under 5 yrs includes:

______________________ and _______________________.

4. A predictor of a high likelihood of need for surgery after trauma is:

a. Organ laceration

b. Active vascular extravasation

c. Pneumothorax

5. Bowel injury on CT shows:

a. Bowel wall thickening

b. Enhancement of the bowel wall

c. Mesenteric stranding

d. Free air or free fluid

e. All of the above

6. Handlebar injuries in a child are associated with an increased incidence of :

a. Pancreatic injury

b. Duodenal injury

c. Renal injury

d. a + b

7. Hypoperfusion complex/systemic shock demonstrates findings of:

a. Dilated and fluid filled bowel

b. Increased enhancement of bowel wall, liver, kidneys

c. Decreased caliber of aorta and IVC

d. All of the above

8. Matching:

a. Decreased lumbar interpediculate distance

b. Bone within bone appearance

c. Anterior beaking of vertebral bodies

d. Telephone receiver femurs

1. Thanatophoric dysplasia

2. Osteopetrosis

3. Mucopolysaccharidosis

4. Achondroplasia

9. Matching:

a. Fraying and cupping of the epiphyses

b. Hindfoot varus and equinus

c. Anteater nose

d. Talar beak

e. Wimberger corner sign

1. Rickets

2. Talocalcaneal coalition

3. Calcaneonavicular coalition

4. Clubfoot

5. Syphilis

10. Tumoral bone is:

a. Cloud like

b. Density that can extend beyond the parent bone

c. Seen in osteosarcoma

d. Seen in Ewing sarcoma

e. a + c

f. a + b + c

13. Matching:

a. Enchondromas and soft tissue phleboliths

b. Enchondromas alone

c. Polyostotic fibrous dysplasia

i. Ollier disease

ii. McCune-Albright syndrome

iii. Mafucci syndrome

14. Common findings in Langerhans cell histiocytosis:

a. beveled edge in skull

b. expansile rib lesion

c. vertebra plana

d. almost any appearance

e. all of the above

Bonus question:

15. Which math equation applies to hypertrophic pyloric stenosis:

a. C = 2π(r)

b. π ’ 3.14

c. “’ πr2

Cases:

Please give the best diagnosis for the entity illustrated. A one word answer may be appropriate.

A. Plain film and CT coronal reconstruction in an 8 y/o boy with hip pain. Give a differential diagnosis in order of likelihood.

[pic]

[pic]

A._________________________________________

B. Look carefully. Identify a differential diagnosis for the cause of the pleural effusion in this 8 year old girl.

[pic]

B.________________________________

C. Stillborn infant.

[pic]

C._______________________________

D. 4 y/o girl with vomiting. Describe the finding and name possible causes.

[pic]

D.___________________________________________

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