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Trochar (core) Biopsy

This is a fairly easy and well tolerated procedure which can be done as outpatient. There may be need for mild sedation and local anesthesia. A larger size needle is inserted into the tumor site and a small piece of cancer tissue is extracted for laboratory studies.

If a tumor is visible or easily palpable, trochar biopsy could be done in a matter of minutes. For tumors that are located in deeper parts of the body, the procedure is normally done under indirect visualization of the tumor site with CT Scan or Ultrasound.