January 2021 EVM Unofficial Reading Quiz
Answers due 1/20/2021 at Midnight
1. I see a lytic lesion with a linear ossific fragment in the dependent portion of the lesion.
a. This is pathognomonic for an ABC
b. The finding is due to malignant transformation.
c. This is pathognomonic for a GCT
d. This finding could lead to spontaneous healing
2. Eccentric lytic tibial lesion with 1B margin in the metaphysis which abuts the articular surface in a 30 yo patient.
a. Slight male predominance.
b. If found in the sacrum can cross the SI joint.
c. Low on T1 and Bright T2 with solid enhancement
d. No recurrence or metastatic potential.
3. Eccentric lesion with fluid-fluid levels that is expansile. Surgery revealed blood filled cystic cavities with connective tissue and septa.
a. If found in the spine - it is always in the vertebral body
b. Never a primary lesion
c. Common diseases associated with this process is GCT, chondroblastoma, and fibrous dysplasia
d. Most commonly found in the metacarpals
4. Patient presents with rectal bleeding. On CT, there is a lesion in the sacrum with calcifications.
a. Nuclear Medicine bone scan is great at showing extent of disease.
b. Can cross the SI joint.
c. Women more common than men
d. wicked fast at growing.
5. What is the historical description of LCH's involvement with the skull on edge? What is a vertebra plana?
6. What decrease in tumor size is associated with a good response?
7. What is the role of the following in bone tumors -
X-ray?
NM?
Chest CT?
MRI?
Biopsy?
8. When do most bone tumors recur?
9. What gender typically gets DDH?
10. What is the alpha angle on ultrasound that is associated with DDH?
11. What limits ultrasound's use beyond 3 months?
12. How does congenital vertical talus present and what developmental anomaly is it associated?
13. What are the 3 radiographic findings to clubfoot?
14. What are the 2 most common tarsal coalitions?
15. What is the significance of a "ball and socket ankle"?
Bonus: If you were on the team from "A League of Their Own" and you never moved and lived to see the 1980s - what band would you be obligated to support as they were the hometown heroes?
