Medical disposable soft tissue biopsy needle after surgery

It refers to the comprehensive pathological examination of the lesion and related tissues and organs removed by therapeutic operation. Different from preoperative biopsy, excision is usually the whole lesion and may be accompanied by affected or enlarged excision of tissues and organs, as well as the affiliated lymph nodes, etc. (such as radical surgery for malignant tumors). Therefore, all lesions and specimens submitted for examination need to be collected from multiple places according to the standard, conventional formaldehyde fixation, paraffin embedding, and HE staining. In pathological diagnosis, not only the name and nature of the disease are determined, but also the classification, indicating the degree of invasion, whether there is spread, whether there is lesion on the surgical margin, etc., which takes 3-7 days to issue a diagnostic report. Because this examination is mostly in the ward for elective surgery patients, it is also often called "big biopsy" or "ward wood".

The purpose of postoperative biopsy is to determine the nature, type and severity of the disease, whether the resection is complete, and whether there is spread, so as to determine whether the preoperative or intraoperative diagnosis is correct, whether the surgical treatment is complete, whether further adjuvant therapy is needed, and the prognostic orientation.

The advantages of postoperative biopsy are comprehensive and detailed examination and more reliable diagnosis, which can further provide more information and basis for the treatment and prognosis of the disease. Its limitation is that it is not possible to fully diagnose diseases that are not suitable for surgical treatment or that are found to be unresectable during surgery. Although there are relevant norms and comprehensive examination of materials, but due to subjective and objective limitations, there is about 1% of the leakage and misdiagnosis rate.