How to Check for Tumors

Clinical examination methods commonly used include invasive examination and non-invasive examination. Invasive examination refers to the examination means of direct trauma to normal human tissues in the process of tumor examination and diagnosis, mainly including needle aspiration cytology, excision biopsy, excision biopsy, forceps biopsy, laparoscopy and so on for obtaining tumor cells or tumor tissues and metastatic lymph nodes. The cells and tissues obtained were finally diagnosed by cell smear, frozen section and paraffin section. Some smears and sections can also be diagnosed and differentiated by immunohistochemical staining and special staining, and even the tissue cells taken can be examined by electron microscopy.

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