Table 2 Radiological features of nonaggressive versus aggressive/undetermined bone lesion
From: Pitfalls in the diagnosis of common benign bone tumours in children
Feature | Nonaggressive | Aggressive/undetermined |
|---|---|---|
Type of lysis | Geographic | Moth-eaten/permeative |
Margins | Well defined | Ill defined |
Zone of transition to normal bone | Narrow | Wide |
Bone contour | Expansion from slow growth | Destruction |
Periosteal reaction | Smooth, uninterrupted | Aggressive types (sunburst, hair-on-end, linear interrupted, Codman triangle) |
Soft-tissue mass | Absent | Present |