The metastasis of laryngeal cancer primarily involves local spread, mainly to the lymph nodes in zones 2, 3, and 4 of the neck. When the cancer becomes more severe, it can break through the lymphatic vessels and spread to the liver, kidneys, spleen, brain, lungs, and other related areas.

Laryngeal cancer is a malignant tumor of the pharyngeal region, typically caused by long-term smoking, drinking, immunodeficiency, and cellular mutations. It commonly occurs in the vocal cords, esophagus, laryngeal ventricle, piriform sinus, base of the tongue, and epiglottis. It causes patients to feel a foreign body sensation in the throat, persistent hoarseness that progressively worsens, irritative cough, difficulty swallowing, and difficulty breathing. An examination with an electronic laryngoscope can help diagnose the condition.

If an abnormal mass is found, a local biopsy is necessary. If laryngeal cancer is confirmed, related surgical treatment as well as radiotherapy or chemotherapy may be required.