A 59-years-old man was admitted to the Institute of Orthopaedics of our university with a 3-years history of thoracolumbar pain, going worse during the last 3 months and followed by deficit in strength and functional limitation.

He reported on the diagnosis of “atypical” chordoma, made elsewhere after histological examination.

At first, radiographic examination of thoracic and lumbar spine was performed.

Afterwards, he underwent thoracic CT examination and whole-spine MR imaging.

Finally, the diagnosis was made by CT guided-biopsy and histological data: BNCT.

He was treated surgically only by removal of the posterior arch of the T12 vertebra, to decompress spinal canal.

The following MR examinations didn't show any changes in the detected vertebral lesions and the patient was considered clinically stable.