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- • Another clue is the type of pathology . If a person
- has epidermoid carcinoma in lymph glands high in the
- neck, for example, the primary site is most often in
- the nasopharynx , the throat or the tonsils. Special
- endoscopic procedures and biopsies can be used to
- look for the primary site and even if it is not found,
- such people are often treated for head and neck
- cancer. Epidermoid cancer involving low cervical
- nodes is usually of lung origin. Cervical lymph nodes
- with metastases of other pathological appearance
- may represent breast cancer, lymphoma, melanoma
- or other tumors
- ( see also "SPECIAL PATHOLOGIC METHODS" ).