Fig. 3

Coronary artery lesions (CALs) in the IVIG-after-IFX group. CALs were identified in seven cases (26%) before initiating IVIG-after-IFX, and two cases (7%) showed new CALs after IVIG-after-IFX. At 3 months after diagnosis, three cases of CALs improved. Eventually, five cases showed persistent CALs after 12 months after diagnosis. The size of CALs also improved over time, but CALs larger than 6 mm did not improve after 3 months after diagnosis. There was no data available in four cases at the time of diagnosis, three cases at 3 months after diagnosis, six cases at 6 months after diagnosis, and five cases at 12 months after diagnosis

*This case did not exhibit CALs before IVIG-after-IFX. New CALs were detected on the RCA after treatment that improved within the observation period. However, the dilation of the distal part of the LAD artery, which had not been clearly depicted before 6 months, became more prominent after 6 months following the diagnosis. Therefore, this was not considered as a new CAL after 6 months