Biopsy


A biopsy is a procedure designed to remove a small sample of tissue is taken from the area in question, typically the tumor, and examined by a pathologist, a physician who specializes in reviewing cells and abnormalities in cells. The pathologist will run special tests on the tissue and examine it under a microscope to determine what is causing the abnormal growth.

Types of biopsy:

      Needle biopsy (sometimes called a core biopsy or fine needle biopsy) – a needle is used to obtain a sample of tissue
  CT-guided biopsy – a CT (CAT) scan is utilized to provide the physician obtaining the tissue (usually an interventional radiologist) precise access to the tissue
  Incisional biopsy – a biopsy performed by making a small incision to access the location of suspicious tissue then using a needle or other small instrument to collect a sample
  Open biopsy – a biopsy done in surgery; may be done when the location of the tumor is difficult to get to by other methods

It is important that a biopsy of an extremity tumor be done by a physician with extensive experience in diagnosing and treating these types of tumors.

A biopsy that is done incorrectly can limit the options for surgical resection if this is a necessary step in treatment.

In addition, the pathologist reviewing the biopsy tissue should have experience reviewing biopsies from extremity tumors
.

Extremity tumors are in general very rare so accuracy in diagnosis is improved in a center where more extremity tumors are diagnosed and treated.