Mucocutaneous lymph node syndrome. Successful aortocoronary bypass homograft in a four-year-old boy.

Mucocutaneous lymph node syndrome has been reported in more than 7,000 cases in Japan and other countries, and 1 to 2 percent of the patients died suddenly. This syndrome accompanied by coronary arterial aneurysm and thrombosis has been noted in postmortem examinations. The usual age is 1 to 1.5 years, and surgical subjects also include babies and infants. We report the findings in a four-year-old boy with this syndrome who was subjected to successful aortocoronary bypass grafting using his mother's fresh vein for homografting.