Epidural / dural dorsal spinal ossification

Case contributed by Dr Fakhry Mahmoud Ebouda


Incidental finding during chest CT.

Patient Data

Age: 56 years

A linear posterior dural/epidural ossific lesion spanning 10th and 11th thoracic vertebral bodies. It measures 6.0 x 0.3 cm in its CC and AP dimensions respectively.

A linear lesion is present in the spinal canal posteriorly, at the T10-T11 levels. It is inseparable from the posterior dura which appears mildly thickened, anterior to the posterior epidural fat, and mildly encroaches on the posterior dural sac. It appears low signal on T1 and T2, and has no significant enhancement. 

Case Discussion

Incidentally noted posterior dural ossification at lower dorsal spine levels, with mild encroachment on the posterior dural sac. Among the differential: prior epidural/subdural haematoma, CAPNON (calcifying pseudoneoplasm of the neural axis), cavernous malformation, oligodendroglioma, meningioma, or cohroid plexus papilloma. We are waiting for histopathological confirmation, to determine the etiology. 



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Case information

rID: 47932
Published: 18th Dec 2016
Last edited: 22nd Dec 2016
Inclusion in quiz mode: Included

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