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Nasopharyngeal Cancer Treatment (PDQ®): Treatment - Patient Information [NCI] - Stages of Nasopharyngeal Cancer

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Stage I

In stage I, cancer has formed and the cancer:

  • is found in the nasopharynx only; or
  • has spread from the nasopharynx to the oropharynx and/or to the nasal cavity.

The oropharynx is the middle part of the throat and includes the soft palate, the base of the tongue, and the tonsils.

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Pea, peanut, walnut, and lime show tumor sizes.

Stage II

In stage II nasopharyngeal cancer, the cancer:

  • is found in the nasopharynx only or has spread from the nasopharynx to the oropharynx and/or to the nasal cavity. Cancer has spread to one or more lymph nodes on one side of the neck and/or to lymph nodes behind the pharynx. The affected lymph nodes are 6 centimeters or smaller; or
  • is found in the parapharyngeal space. Cancer may have spread to one or more lymph nodes on one side of the neck and/or to lymph nodes behind the pharynx. The affected lymph nodes are 6 centimeters or smaller.

The oropharynx is the middle part of the throat and includes the soft palate, the base of the tongue, and the tonsils. The parapharyngeal space is a fat-filled, triangular area near the pharynx, between the base of the skull and the lower jaw.

Stage III

In stage III nasopharyngeal cancer, the cancer:

  • is found in the nasopharynx only or has spread from the nasopharynx to the oropharynx and/or to the nasal cavity. Cancer has spread to one or more lymph nodes on both sides of the neck. The affected lymph nodes are 6 centimeters or smaller; or
  • is found in the parapharyngeal space. Cancer has spread to one or more lymph nodes on both sides of the neck. The affected lymph nodes are 6 centimeters or smaller; or
  • has spread to nearby bones or sinuses. Cancer may have spread to one or more lymph nodes on one or both sides of the neck and/or to lymph nodes behind the pharynx. The affected lymph nodes are 6 centimeters or smaller.

The oropharynx is the middle part of the throat and includes the soft palate, the base of the tongue, and the tonsils. The parapharyngeal space is a fat-filled, triangular area near the pharynx, between the base of the skull and the lower jaw.

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