Ankylosing spondylitis: Andersson lesion

Case contributed by Dr Renan Ibrahem Adam


Presented with increasing low back pain.

Patient Data

Age: 24 years
Gender: Male

There is central abnormal discovertebral signal affecting both vertebral halves of L1/L2 and L3/L4 with
almost hemi-spherical shape. At L4/L5 only the L4 side is affected. The endplate lesions appear hyperintense on STIR images and hypointense on T1-weighted images. 


Case Discussion

The appearances are in keeping with Andersson lesions and active disease in a patient with known ankylosing spondylitis. 

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Case information

rID: 39462
Case created: 5th Sep 2015
Last edited: 23rd Apr 2017
Inclusion in quiz mode: Included

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