Vacuum Assisted Biopsy:
Core biopsy is sometimes suction assisted with a vacuum device. This method enables to removal of multiple samples with only one needle insertion. Vacuum assisted core biopsy is being used more and more in breast biopsy procedures and is guided via stereotactic mammography or ultrasound imaging. However, unlike core biopsy, the vacuum assisted biopsy probe is inserted just once into the tissue through a tiny skin nick. Multiple samples are then taken using a rotation of the sampling needle aperture (opening) and with the assistance of suction.
Endoscopic Biopsy
is a very common type of biopsy. Endoscopic biopsy is done through an endoscope (a fiber optic cable for viewing inside the body) which is inserted into the body along with sampling instruments. The endoscope allows the physician to visualize the abnormality and guide the sampling. Endoscopic biopsy may be performed of the gastrointestinal tract (alimentary tract endoscopy), urinary bladder (cystoscopy), abdominal cavity (laparoscopy), joint cavity (arthroscopy), mid-portion of the chest (mediastinoscopy), or trachea and bronchial system (laryngoscopy and bronchoscopy), either through a natural body orifice or a small surgical incision. The endoscopist can directly visualize an abnormal area on the lining of the organ in question and pinch off tiny bits of tissue with forceps attached to a long cable that runs inside the endoscope.
Punch Biopsy
is typically used by dermatologists to sample skin rashes, moles and other small masses. After a local anesthetic is injected, a biopsy punch, which is similar in function to a small (3 mm to 4 mm or 0.15 inch in diameter) version of a كلمة ممنوعةكلمة ممنوعةكلمة ممنوعةكلمة ممنوعةكلمة ممنوعةكلمة ممنوعة cutter, is used to cut out a cylindrical piece of skin. The opening is typically closed with a suture (small stitches) and heals with minimal scarring. Punch biopsy may also be performed when removing small tissue samples from the cervix.
Surface Biopsy
involves sampling or scraping the surface of a sore or tumor to remove cells for pathologic testing. Surface biopsy is often performed by dermatologists to remove a small piece of skin to test for carcinoma (cancerous tissue).
Surgical Biopsy (or Excisional Biopsy):
surgical biopsy can be excisional (removal of an entire lesion) or incisional (removal of a piece of a lesion). Until about a decade ago, most biopsies performed were open surgical procedures. However, surgical biopsy is less common now. Surgical biopsies can be performed on abnormalities that can be seen or felt by the surgeon or pre-operative imaging can help provide a road map to the lesion. In cases of non-palpable breast lesions, a percutaneous wire can be placed in or near the lesion using mammogram or ultrasound for guidance. This marker wire provides a target for the surgeon. The removed tissue is then histologically analyzed by a pathologist