The process used to find out whether cancer has spread within the
nasopharynx or to other parts of the
body is called staging. The information gathered from the
staging process determines the stage of the disease. It is
important to know the stage in order to plan treatment. The results of the tests used to
diagnose nasopharyngeal cancer are often also used to stage the disease.
In stage 0 nasopharyngeal cancer, cancer is found only in the lining
of the nasopharynx. Stage 0 cancer is also called
carcinoma in situ.
In stage I nasopharyngeal
cancer, cancer is found only in the nasopharynx.
Stage II nasopharyngeal
cancer is divided into stage IIA and stage IIB as
In stage III nasopharyngeal
cancer, the cancer:
Stage IV nasopharyngeal
cancer is divided into stage IVA, stage IVB, and stage IVC as
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