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Case of the Week 345 
What's the most likely diagnosis?
- 12 year-old male with knee pain
Right Knee-AP View
- Segund fracture
- Giant cell tumor
- Dislocated patella
- Chondroblastoma
- Fracture of lateral femoral condyle
Additional Image - Right Knee-Lateral View
Additional Image
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Right Knee-Lateral View
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Answer:
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4. Chondroblastoma
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More (Click Discussion Tab)
Chondroblastoma
General Considerations
- Rare, benign bone tumor that arises in the epiphysis of long bones in skeletally immature patients
- Usually occurs under the age of 20; males greater than females
- Most common locations are in lower extremity (70%)
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This Week
This two-part video podcast reviews the causes and appearances of soft tissue calcifications associated with arthritis, tumors, trauma and more; there is a mini-quiz at the end |
A trim mobile version for your PDA or internet-enabled smartphone with handy lists of differential diagnoses, most commons and more
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Key points on recognizing the most common fractures and dislocations |
Basic CT imaging of the brain focusing on the findings of cerebrovascular accidents |
The top diagnostic imaging diagnoses that all medical students should recognize according to the Alliance of Medical Student Educators in Radiology |
Recognizing normal and key abnormal intestinal gas patterns, free air and abdominal calcifications |
Some of the fundamentals of interpreting chest images |
UPDATED 
| LearningRadiology.com |
is an award-winning educational website aimed primarily at medical students and radiology residents-in-training, containing lectures, handouts, images, Cases of the Week, archives of cases, quizzes, flashcards of differential diagnoses and “most commons” lists, primarily in the areas of chest, GI, GU cardiac, bone and neuroradiology. |
