To the Editor.—
We wish to report an interesting phenomenon that is probably more widely prevalent than is recognized. An 18-month-old girl was brought to our Emergency Department by her parents for the sudden onset of a bluish rash on the toddler's thighs and abdomen. There was no history of recent viral illness, fever, change in appetite or activity, recent drug or toxin ingestion, or trauma. The mother thought the thighs appeared swollen, but the child was walking normally without any apparent pain or discomfort.