| Wilkinson's syndrome | |
| Synonym: | Sclerotic pedicle sign |
| Field: | Radiology |
| Onset: | Congenital |
Wilkinson's syndrome (also known as Sclerotic pedicle sign) is a radiographic term which describes a unilaterally enlarged pedicle opposite a contralateral pars defect.[1] [2] The enlarged pedicle may due to stress hypertrophy, and changes may extend into the adjacent lamina and transverse processes.
The characteristic radiographic feature of Wilkinson's syndrome is a missing pedicle with a thick, sclerotic contralateral pedicle at the same level. This is sometimes referred to as a "winking owl sign".[3]