The new MRI scan of last Monday looks as expected. The lesions did shrink and the fourth ventricle is no longer as compressed and displaced as in February. What the cause of this shrinking is is not clear, it is likely that the Dexamethasone has caused the shrinking. I am now reducing this medication (I took 8 mg up to now, from tomorrow onward it will be 4 mg and 2 mg for one week after that). In about two weeks a new MRI will be scheduled, and if this shows again that the lesion is shrinking, another one will be scheduled after that. The reason is that they want to see whether the lesion shrinks by itself after I stopped with my MS medication, and with the absence of Dexamethasone. This Friday I have a meeting with the hematologist to discuss treatment options.
An MRI slice with contrast of 21st Feb (left) and 20th of March (right)