Winking owl sign - absent pedicle in spinal metastases

Case contributed by Dr Roberto Schubert

Patient Data

Gender: Male

Absent right pedicle of L4.

Winking owl.

Image source: Wikimedia commons.

Case Discussion

Winking owl sign refers to an absent vertebral pedicle in a frontal radiograph.

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Case information

rID: 14694
Published: 22nd Aug 2011
Last edited: 12th May 2021
Inclusion in quiz mode: Included