Double line sign, Radiology Reference Article

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

Osteonecrosis of femoral head with double-line sign

Double line sign, Radiology Reference Article

The Radiology Assistant : Chest X-Ray - Basic Interpretation

Osteonecrosis

The Radiology Assistant : Breast Implants

Figure 2 from Are the Current Classifications and Radiographic

Barium Studies: Single and Double Contrast

Top 3 Differentials in Pediatric Radiology: A Case Review: Stein

PHOTO GALLERY: What does fetal medical imaging look like?

Heart failure: How does it appear on a chest X-ray?