<unk>  (also known as Sclerotic pedicle sign) is a radiographic term which describes a unilaterally enlarged pedicle opposite a contralateral pars defect. The enlarged pedicle may due to stress hypertrophy, and changes may extend into the adjacent lamina and transverse processes. The characteristic radiographic feature of<unk>  is a missing pedicle with a thick, sclerotic contralateral pedicle at the same level. This is sometimes referred to as a "winking owl sign".
Wilkinson's syndrome
Wartenberg's syndrome
Susac's syndrome
Frey's syndrome
Bálint's syndrome
Banti's syndrome
Renpenning's syndrome
Twiddler's syndrome