My nice has a hard knot or growth on her face. I was told the doctor was going to try to draw some fluid to check it but the knot was too hard to get the needle or instrument in the growth. WHAT COULD THIS KNOT OR GROWTH BE? WHAT COULD VE CAUSED IT? SHE S A PATIENT IN HOSPITAL NOW. SHE WAS UNCONSCIOUS AT BEGINNING, HAD SWOLLEN TONGUE , THEN, AFTERWARDS COULDN T SWALLOW. I WAS TOLD HER HEART IS ONLY 30% OPERATING AT LAST I HEARD. THANK YOU , ELLA.