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Case of the Week 334 
What's the most likely diagnosis?
- 28 year-old male with knee pain after fall
- Paget disease
- Multiple stress fractures
- Osteochondritis dissecans
- Growth arrest lines
- Joint effusion
Additional Images - Close-up of lateral tibia
Answer:
4. Growth arrest lines
More (Click Discussion Tab)
Growth Arrest Lines
General Considerations
- Dense metaphyseal, trabecular lines
- Seen in children but persist into adulthood
- First thought to represent periods of nutritional deprivation or infectious pathogens during the time of bone growth
- May occur after prolonged immobilization or generalized illness
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LearningRadiology.com is an award-winning educational site aimed primarily at medical students and radiology residents-in-training, containing lectures, handouts, images, Cases of the Week, archives of case quizzes, flashcards of differential diagnoses and “most commons” lists, primarily in the areas of chest, GI, cardiac, and bone radiology.
