1. MSK: OSTEONECROSIS AND OSTEOCHONDROSES

2. CASE 1:

3. 1. Most commonly affected age group: A. 11 and 15 years old B. 1 and 5 years old C. 10 and 16 years old C. 6 and 10 years old

4. CASE 1: 1. Most commonly affected age group: A. 11 and 15 years old B. 1 and 5 years old C. 10 and 16 years old C. 6 and 10 years old Resnick p.1098

5. CASE 1 2. Most important finding for a radiographic diagnosis of Osgood Schlatter? A.Soft tissue swelling B.Fragmented tuberosity C.Avulsion D.Indistinct patellar margins

6. CASE 1 2. Most important finding for a radiographic diagnosis of Osgood Schlatter? A.Soft tissue swelling B.Fragmented tuberosity C.Avulsion D.Indistinct patellar margins Resnick p.1098

7. CASE 1 3. Predisposing conditions for this disease. A. Rapid growth spurt and participation in sports B. Previous trauma C. Obesity D. Iatrogenic

8. CASE 1 3. Predisposing conditions for this disease. A. Rapid growth spurt and participation in sports B. Previous trauma C. Obesity D. Iatrogenic Resnick p.1100

9. CASE 2: Enumerate 2 common radiographic findings: It is usually unilateral with predilection to affect the males Crescent sign

10. CASE 2:

11. CASE 2 1. Most common radiographic findings A. Fragmented sclerotic femoral ossification center B. Fissuring and fracture of the femoral marrow C. Fragmented and lucent femoral ossification center D. Fissuring and lysis of the femoral marrow

12. CASE 2 1. Most common radiographic findings A. Fragmented sclerotic femoral ossification center B. Fissuring and fracture of the femoral marrow C. Fragmented and lucent femoral ossification center D. Fissuring and lysis of the femoral marrow Resnick p.1090

13. CASE 2 2. Most common clinical signs A. Limping, pain, limitation in ROM B. Soft tissue tenderness C. Palpable mass D. None of the above

14. CASE 2 2. Most common clinical signs A. Limping, pain, limitation in ROM B. Soft tissue tenderness C. Palpable mass D. None of the above Resnick p.1089

15. CASE 2 3. A radiodense curvilinear shadow at the base of the femoral neck is called as A.Sagging rope sign B.Sagging tree sign C.Snake sign D.Cobra sign

16. CASE 2 3. A radiodense curvilinear shadow at the base of the femoral neck is called as A.Sagging rope sign B.Sagging tree sign C.Snake sign D.Cobra sign Resnick p.1091

17. CASE 3

18. 1. Most common radiographic finding A.Flattening, increase in radiodensity and cystic lucent areas at the metatarsal head B.Flattening, radiolucent metatarsal head C.Squashed appearance of the distal metatarsal head D.Enlarged and deformed metatarsal

19. CASE 3: Frieberg’s infarction 1. Most common radiographic finding A.Flattening, increase in radiodensity and cystic lucent areas at the metatarsal head B.Flattening, radiolucent metatarsal head C.Squashed appearance of the distal metatarsal head D.Enlarged and deformed metatarsal Resnick p.1095

20. CASE 3 2. Most common location A. 2 nd metatarsal B. 3 rd metatarsal C. 4 th metatarsal D. 5 th metatarsal

21. CASE 3 2. Most common location A. 2 nd metatarsal B. 3 rd metatarsal C. 4 th metatarsal D. 5 th metatarsal Resnick p.1095

22. CASE 3 3. This disease is called as A. Freiberg’s infarction B. Kienbock’s disease C. Panner’s disease D. Thiemann’s disease

23. CASE 3 3. This disease is called as A. Freiberg’s infarction B. Kienbock’s disease C. Panner’s disease D. Thiemann’s disease Resnick p. 1095

24. CASE 4:

25. CASE 4

26. 1. Diagnosis for the prior radiographs A. Bone infarct B. Osteochondroses C. Giant cell tumor D. Fibrous dysplasia

27. CASE 4 1. Diagnosis for the prior radiographs A. Bone infarct B. Osteochondroses C. Giant cell tumor D. Fibrous dysplasia Resnick p. 1067

28. CASE 4 2. Bone infarct is used to describe the ischemic death of the cellular components of bone and marrow involving the A. Metaphysis and diaphysis B. Epiphysis C. Metaphysis D. Physis

29. CASE 4 2. Bone infarct is used to describe the ischemic death of the cellular components of bone and marrow involving the A. Metaphysis and diaphysis B. Epiphysis C. Metaphysis D. Physis Resnick p. 1067

30. CASE 4 3. Imaging modality of choice A. MRI B. Bone Scan C. CT D. X-ray

31. CASE 4 3. Imaging modality of choice A. MRI B. Bone Scan C. CT D. X-ray Resnick p.1073