![Once adult ALL has been diagnosed, tests are done to find out if the cancer has spread to the central nervous system (brain and spinal cord) or to other parts of the body. Once adult ALL has been diagnosed, tests are done to find out if the cancer has spread to the central nervous system (brain and spinal cord) or to other parts of the body.](https://cancerhelpessentiahealth.org/images/cdr/live/CDR503953-750.jpg)
Once adult ALL has been diagnosed, tests are done to find out if the cancer has spread to the central nervous system (brain and spinal cord) or to other parts of the body.
![Compression of the brainstem – Atlantoaxial instability and Atlas displacement – Caring Medical Florida Compression of the brainstem – Atlantoaxial instability and Atlas displacement – Caring Medical Florida](https://www.caringmedical.com/wp-content/uploads/2021/05/Oct-15-Filming-Figures-9.9.2036-WEB.png)
Compression of the brainstem – Atlantoaxial instability and Atlas displacement – Caring Medical Florida
![Fluid-Signal Structures in the Cervical Spinal Cord on MRI: Anterior Median Fissure versus Central Canal | American Journal of Neuroradiology Fluid-Signal Structures in the Cervical Spinal Cord on MRI: Anterior Median Fissure versus Central Canal | American Journal of Neuroradiology](https://www.ajnr.org/content/ajnr/38/4/840/F1.large.jpg)