A positive dorsal fat pad or stripe sign is defined as a convex dorsal displacement of the dorsal fat pad of the wrist. A positive sign may indicate a distal radius fracture. Is it best visualized on the lateral view of the wrist.
The normal dorsal skin subcutaneous fat pad is a thin concave, curvilinear collection of fat overlying the dorsal aspect of the carpus. It is located between the dorsal extensor tendons and the joint capsule. Radiolucency of the dorsal fat pad is normal when concave or curvilinear.