Cancer stage IV laryngeal. Definition

Medical Definition: Cancer stage IV laryngeal

Stage IV is divided into stages IVA, IVB and IVC. In stage IVA, one of the following situations: (1) the cancer has spread through the thyroid cartilage or has spread to tissues beyond the larynx such as the neck, trachea, thyroid or esophagus cancer may have spread to one lymph node on the same side of the neck as the original tumor and the lymph node is smaller than 3 centimeters, or (2) the cancer has spread to one or more lymph nodes anywhere in the neck and lymph nodes are smaller than 6 centimeters, the cancer may have spread to tissues beyond the larynx such as the neck, trachea, thyroid or esophagus. The vocal cords can move normally. In stage IVB, one of the following situations: (1) the cancer has spread to the space in front of the spinal column and surrounds the carotid artery, or has spread to parts of the chest and may have spread to one or more lymph nodes anywhere in the neck (lymph nodes may be any size), or (2) the cancer has spread to one lymph node that measures more than 6 centimeters and may have spread to the area in front of the spine around the carotid artery or to parts of the chest. The vocal cords can move normally. In stage IVC, cancer has spread beyond the larynx to distant parts of the body.

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