Cytological examination of biopsy needle procedure

Cytology (cytology) check shall be defined as areas in patients with lesions, scrape and cells in the puncture extraction, observation of pathological morphology and make qualitative diagnosis, cytological examination is mainly used in the diagnosis of the tumor, can also be used to check and diagnosis of some diseases, such as internal organs of inflammatory disease diagnosis and judgement of hormone levels, etc.

Cytological specimens can be exfoliated cells from excreta or excreta of genital tract, respiratory tract, digestive tract, urinary tract, etc., exfoliated cells can also be exfoliated cells from fluid of thorax, abdomen, pericardium, joint cavity and cerebrospinal membrane cavity extracted by puncture, or collected by various endoscope brush smears and prints. Or through the fine needle aspiration (FNA) technology (needle diameter 0.6-0.9mm) directly or under the guidance of B ultrasound, X-ray puncture and absorb the cells of various tissues and organs of the body, etc., these cells will be directly or by centrifugal sedimentation and other methods after smear, fixation, staining, observation and diagnosis under the light microscope. Results are usually available within a few hours. The main purpose is to determine whether there are tumor cells, whether they are benign or malignant. (1) Exfoliated cells of tumor tissues on the epithelial surface of the body, such as exfoliated cells of the esophagus, female reproductive tract and urinary tract.

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