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MSK:OSTEONECROSIS ANDOSTEOCHONDROSES
CASE 1:
CASE 1:
• 1. Most commonly affected age group:A. 11 and 15 years oldB. 1 and 5 years oldC. 10 and 16 years oldC. 6 and 10 years old
CASE 1:
• 1. Most commonly affected age group:A. 11 and 15 years oldB. 1 and 5 years oldC. 10 and 16 years oldC. 6 and 10 years old
Resnick p.1098
CASE 1
• 2. Most important finding for a radiographic diagnosis of Osgood Schlatter?A. Soft tissue swellingB. Fragmented tuberosityC. Avulsion D. Indistinct patellar margins
CASE 1
• 2. Most important finding for a radiographic diagnosis of Osgood Schlatter?A. Soft tissue swellingB. Fragmented tuberosityC. Avulsion D. Indistinct patellar margins
Resnick p.1098
CASE 1
• 3. Predisposing conditions for this disease.A. Rapid growth spurt and participation in
sportsB. Previous traumaC. ObesityD. Iatrogenic
CASE 1
• 3. Predisposing conditions for this disease.A. Rapid growth spurt and participation in
sportsB. Previous traumaC. ObesityD. Iatrogenic
Resnick p.1100
CASE 2:
• Enumerate 2 common radiographic findings:
• It is usually unilateral with predilection to affect the males
• Crescent sign
CASE 2:
CASE 2
• 1. Most common radiographic findings A. Fragmented sclerotic femoral ossification
centerB. Fissuring and fracture of the femoral marrowC. Fragmented and lucent femoral ossification
centerD. Fissuring and lysis of the femoral marrow
CASE 2
• 1. Most common radiographic findings A. Fragmented sclerotic femoral ossification centerB. Fissuring and fracture of the femoral marrowC. Fragmented and lucent femoral ossification
centerD. Fissuring and lysis of the femoral marrow
Resnick p.1090
CASE 2
• 2. Most common clinical signs A. Limping, pain, limitation in ROM
B. Soft tissue tendernessC. Palpable massD. None of the above
CASE 2
• 2. Most common clinical signs A. Limping, pain, limitation in ROM
B. Soft tissue tendernessC. Palpable massD. None of the above
Resnick p.1089
CASE 2
• 3. A radiodense curvilinear shadow at the base of the femoral neck is called asA. Sagging rope signB. Sagging tree signC. Snake signD. Cobra sign
CASE 2
• 3. A radiodense curvilinear shadow at the base of the femoral neck is called asA. Sagging rope signB. Sagging tree signC. Snake signD. Cobra sign
Resnick p.1091
CASE 3
CASE 3
• 1. Most common radiographic findingA. Flattening, increase in radiodensity and cystic
lucent areas at the metatarsal headB. Flattening, radiolucent metatarsal headC. Squashed appearance of the distal metatarsal
headD. Enlarged and deformed metatarsal
CASE 3: Frieberg’s infarction
• 1. Most common radiographic findingA. Flattening, increase in radiodensity and cystic
lucent areas at the metatarsal headB. Flattening, radiolucent metatarsal headC. Squashed appearance of the distal metatarsal
headD. Enlarged and deformed metatarsal
Resnick p.1095
CASE 3
• 2. Most common locationA. 2nd metatarsalB. 3rd metatarsalC. 4th metatarsalD. 5th metatarsal
CASE 3
• 2. Most common locationA. 2nd metatarsalB. 3rd metatarsalC. 4th metatarsalD. 5th metatarsal
Resnick p.1095
CASE 3
• 3. This disease is called asA. Freiberg’s infarctionB. Kienbock’s diseaseC. Panner’s diseaseD. Thiemann’s disease
CASE 3
• 3. This disease is called asA. Freiberg’s infarctionB. Kienbock’s diseaseC. Panner’s diseaseD. Thiemann’s disease
Resnick p. 1095
CASE 4:
CASE 4
CASE 4
• 1. Diagnosis for the prior radiographsA. Bone infarctB. OsteochondrosesC. Giant cell tumorD. Fibrous dysplasia
CASE 4
• 1. Diagnosis for the prior radiographsA. Bone infarctB. OsteochondrosesC. Giant cell tumorD. Fibrous dysplasia
Resnick p. 1067
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 diaphysisB. Epiphysis C. MetaphysisD. Physis
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 diaphysisB. Epiphysis C. MetaphysisD. Physis
Resnick p. 1067
CASE 4
• 3. Imaging modality of choiceA. MRIB. Bone ScanC. CTD. X-ray
CASE 4
• 3. Imaging modality of choiceA. MRIB. Bone ScanC. CTD. X-ray
Resnick p.1073