Basilar invagination

Case contributed by Dr Henry Knipe



Patient Data

Age: 70
Gender: Female

No intra- or extra-axial collection or haemorrhage demonstrated. No focal abnormality. Grey-white differentiation is preserved. Ventricular size, sulcal pattern and basal cisterns all appear normal. Basilar invagination is present with narrowing of the craniocervical junction and mildly impresses on the medulla oblongata/cervical spinal cord, unchanged from prior. The dens is mildly expanded and sclerotic/irregular with well-circumscribed lobulated lucency/erosion at the posterior aspect of the base of the dens.

Case Discussion

Basilar invagination was an incidental finding in this case. It has a wide range of acquired and congenital causes. In this case the patient has a history of rheumatoid arthritis, which is the most common acquired cause and this patient's most likely cause. 

PlayAdd to Share

Case information

rID: 29436
Published: 24th May 2014
Last edited: 16th Jul 2018
Tag: spine
Inclusion in quiz mode: Included

Updating… Please wait.

Alert accept

Error Unable to process the form. Check for errors and try again.

Alert accept Thank you for updating your details.