Ultrasonographic evaluation of the gallbladder in mucocutaneous lymph node syndrome.

Hydrops of the gallbladder was diagnosed by ultrasonography in five out of ten consecutive patients with mucocutaneous lymph node syndrome (MLNS). Certain signs and symptoms were correlated with the development of hydrops. Follow-up ultrasonography revealed the return of the gallbladder to normal size in four out of four patients. One patient was lost to follow-up. Hydrops of the gallbladder in patients with MLNS appears to be a self-limiting condition with a benign course.