Absent pedicle sign (breast cancer metastases)

Case contributed by RMH Core Conditions

Presentation

Back pain.

Patient Data

Age: 54 years
Gender: Female
Modality: X-ray

Left L2 vertebral lesion is seen, with destruction of the left pedicle. Mild-to-moderate right scoliosis again noted together with degenerative change. Contrast within large bowel.

Bone scan

Modality: Nuclear medicine

There are foci of intensely increased radiotracer uptake in T9, L2 and L4. 

Case Discussion

Patient has a known history of breast cancer and this represents osseous metastases. 

Absent pedicle sign refers to the destruction of one pedicle, it is said to give the frontal view of the vertebral body the appearance of a winking owl, hence its alternative name, the winking owl sign

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Case Information

rID: 29822
Case created: 25th Jun 2014
Last edited: 28th Aug 2015
Tag: spine
Inclusion in quiz mode: Included

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