What Is A Biopsy?

Biopsy, also known as surgical pathology, referred to as "external examination". It refers to the technique of removing diseased tissue from the patient's body for pathological examination in response to the needs of diagnosis and treatment. This is the most important part of diagnostic pathology, which can make a clear histopathological diagnosis for the vast majority of cases examined, and is regarded as the final clinical diagnosis.

2 Purpose of biopsy

(1) To assist clinical diagnosis of lesions or provide clues for disease diagnosis.

(2) To understand the nature and development trend of the disease, and to judge the prognosis of the disease.

(3) To verify and observe the efficacy of drugs, so as to provide reference for clinical medication.

(4) Participate in clinical research, discover new diseases or new types, and provide histopathological basis for clinical research.

3. Scope of application of biopsy

(1) Surgically removed organs and tissues, such as appendix, thyroid gland, gallbladder, lymph nodes, etc.

(2) Puncture tissue extraction, such as liver, kidney, lymph node puncture tissue.

(3) Small pieces of tissue cut from the lesion site, including the lesion tissue taken by endoscopic forceps such as fiberoptic gastroscope and fiberoptic bronchoscope.

4. Observe the specimen first when taking materials

(1) Anatomical site, color, volume, texture of the specimen, whether there is a mass, that is, whether the mass has an envelope; Whether the envelope is complete; Morphological changes in incidental tissues such as skin and lymph nodes.

(2) Specimens that can be cut should be cut, and observe the color, texture of the cut surface, whether there is bleeding, necrosis, nodules, cyst cavity, whether there is content in the cyst cavity, and the character of the content.

(3) The length of the esophagus and appendix should be measured, and the color of the serosa and mucosa should be observed, as well as whether there is adhesion.

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