What physical finding might indicate Kawasaki disease?

Erythema and swelling of extremities are key physical findings associated with Kawasaki disease. This condition primarily affects children and is characterized by inflammation of blood vessels, leading to changes in the skin and the presence of systemic symptoms. One of the hallmark signs is the acute onset of rash, particularly involving the palms of the hands and the soles of the feet. As the disease progresses, it often leads to significant swelling and redness in the extremities due to the inflammatory response.

The presence of erythema and swelling, alongside other symptoms like fever, conjunctivitis, and changes in the lips and mouth, helps pediatricians differentiate Kawasaki disease from other illnesses. Recognizing these symptoms is crucial for timely diagnosis and intervention, as Kawasaki disease can lead to serious complications like coronary artery aneurysms if left untreated.

The other options represent different conditions or manifestations that do not align with the classic presentation of Kawasaki disease, thus making the first option the correct identification of relevant physical findings for this specific illness.