Porter's sign

Por·ter's sign

(pôr′tərz)
n.
An indication of aneurysm of the aortic arch marked by pulsation of the trachea when the cricoid cartilage of the larynx is drawn upward with the thumb and forefinger while the individual sits with the head thrown back and mouth closed.
References in periodicals archive ?
The Porter's signs were gone on the outside of the building, but a boarded-up front window remained.