I just got off the phone with my ex. The doctor in charge of my son’s treatment has evaluated yesterday’s MRI, and was immediately ably to tell that there have been changes to the white matter in his frontal lobe. The doctor considers the concern for this to be severe, and has given us an urgent recommendation to a pediatric neurological oncologist at Emery, and will likely be moved up there tomorrow. This is, alas, the worse case scenario situation, and will significantly alter his treatment path.
The condition is called toxic leukoencephalopathy or toxic spongiform leukoencephalopathy and is characterized by progressive damage (-pathy), of the white matter (leuko-) of the brain (-encephalo-) due to ingested toxins (toxic).
Toxic leukoencephalopathy has also been reported as a consequence of cranial irradiation and chemotherapy in the treatment of leukemias, such as acute lymphoblastic leukemia, which is what my son has.
Toxic leukoencephalopathy affects white matter tracts devoted to higher cerebral function, causing clinical features that range from inattention, forgetfulness, and changes in personality to dementia, coma, and death.