Baylee littrel Diagnosed With Kawasaki Syndrom

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Baylee Littrell, son of Brian Littrell, a member of the pop music group the Backstreet Boys, was finally diagnosed last week with Kawasaki syndrome, a collection of symptoms that stem from swollen blood vessels.

Recording artist Brian Littrell, son Baylee Littrell and wife Leighanne Littrell. Baylee was recently diagnosed with A-Typical Kawasaki Syndrome, a disease that causes swollen blood vessels and can result in aneurisms and cardiac arrest.

( Alberto E. Rodriguez/Getty Images)"He's never been sick," said Baylee's mother, Leighanne Littrell. When he first began to show symptoms, "it kind of blew us away and from then on things escalated."

In an announcement on Brian Littrell's Web site, the family detailed how Baylee, 6, was tested for several different infections including strep throat and hand, foot and mouth disease before being diagnosed with atypical Kawasaki disease.

Kawasaki disease or Kawasaki syndrome (KS) is characterized by a high fever that lasts about five days. Fever is usually accompanied by red eyes, a rash, red lips and tongue and swollen hands, feet and lymph nodes. If only some of these symptoms are present along with a high fever, the KS is called atypical.