The double line sign is a pathognomonic MRI finding seen at the periphery of a region of osteonecrosis or bone infarct, representing the border between the viable and non-viable bone 4. I
Figure 2 from Are the Current Classifications and Radiographic
Rigler's sign - Radiology at St. Vincent's University Hospital
Intravertebral Cleft Sign
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Generative AI makes diagnosis easier in radiology
Osteonecrosis of femoral head with double-line sign
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Muscular anatomic variants of the wrist and hand: findings on MR
Trough line sign, Radiology Reference Article
OPG scan (panoramic dental x ray) - DentQ International
The 'Double Lung Point': An Ultrasound Sign Diagnostic of