Collaborative Hypertext of Radiology

pseudo-fracture (Looser zone)

lucent band of decreased cortical density

perpendicular to bone surface
often multiple, +/- symmetrical
+/- callus formation
"pathognomonic" of osteomalacia
- seen on compressive (concave) side (eg, prox femur)
also seen in Paget dz on tensile (convex) side

Charles E. Kahn, Jr., MD - 2 February 1995
Last updated: 1 October 2013