However, 3 months poststroke, MRA revealed the deterioration of the IC stenoses (Figure 3), and since the patient’s CML was in remission (MR4,5 on the BCR::ABL1 International Scale), the total cessation of TKI treatment was decided after hematological assessment. Here, ABL1 is linked to chronic myelogenous leukemia, BCR-ABL1 positive.