Hi, I have a lymph node just in center of my throat just a little above my Adam's apple..im really scared what can it be? It's been there for almost a year now..it's not painful it's hard, and hasn't grown in size..moves as I swallow..please let me know what's going on!! Can it be a tumor or cancer?no other symptoms only irrated throat, around the same time when the node got swollen..32 f occasional smoker