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| IMAGE QUIZ ARCHIVE | ||||||
| Image Quiz | ||
| Spontaneous Versus Atraumatic Osteonecrosis of the Knee (continued)1 | ||
| Answer: Spontaneous osteonecrosis of the knee. | ||
 Fig. 1 |
Fig. 1 Coronal T1-weighted image showing spontaneous osteonecrosis of the knee involving the femoral condyle (arrow). For larger view, click on image |
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| A forty-year-old man receiving chronic steroid therapy for asthma had pain in the medial aspect of the knee. Plain radiographs showed no osseous abnormalities. | ||
 Fig. 2 |
A magnetic resonance image was acquired (Fig. 2). For larger view, click on image |
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| What is the diagnosis? | ||
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