Core Breast Biopsy - Types and Procedure

Introduction:

Breast cancer is a common type of cancer analyzed in females worldwide, accounting for about twenty-one percent of all cancers. Breast cancer in India is rising and becoming the most common cancer among females. In India, early pre-operative pathology diagnosis is crucial for the treatment of breast cancer; fine needle aspiration cytology is used in the examination of breast masses in both palpable and nonpalpable lesions as it gives a quick, precise, and cost-efficient diagnosis.

However, fine needle aspiration cytology has a few negative impacts on examining breast lesions, resulting in too many excision biopsies for assessing masses present in the breast. In most Western countries, core biopsy is now used instead of fine needle aspiration for symptomatic breast lesions detected on screen. The extent of inadequate sample information is inferior to that of needle aspiration cytology, and it is not as invasive and expensive as approximated with excision biopsy or excision biopsy used in diagnosis.

What Are the Types of Breast Biopsies?

There are different types of breast biopsy, and this procedure depends on factors like,

• How the changes in the breast appear.

• How large the size of the lesion is.

• The location of the lesion in the breast.

• Patient health.

The types of biopsy involve- fine needle aspiration cytology, core breast biopsies, open surgical biopsy, and lymph node biopsy.

What Is Core Breast Biopsy?

• In this procedure, the surgeon uses a hollow needle to remove portions of breast tissues from a doubtful spot that the doctor has assumed on assessment or confirmed during an imaging test. The needle is connected to a spring-loaded instrument that drives it inside and outside of the tissue fast, or it can be connected to a suction appliance that enables pulling the breast tissue into the needle. Thus, this procedure is also known as a vacuum-assisted core biopsy.

• This procedure removes a cylindrical breast tissue core by using a needle. Like this, numerous cores are removed. While doing this procedure, several imaging tests will instruct the biopsy procedure. It is based on which test can view the affected or suspected area clearly and on the patient's comfort.

• During the biopsy procedure, the surgeon will keep the needle in the suspected area. This is done by palpating the area of the lump, but in this case, an imaging test can help the surgeon as it will instruct them to the correct site. The imaging tests include mammograms, ultrasound, and MRI (magnetic resonance imaging).

• The core breast biopsy is done in an outpatient setup. It is a quick procedure, thus completed in a short period. Suppose the biopsy is accomplished by utilizing the imaging technique. In that case, the patient is either in a sitting position or in a lying position on a bed with an opening for the breast. It relies on imaging like mammography, ultrasound, or MRI in all types of core breast biopsy, and a light needle is utilized initially to place anesthesia medication into the site where the biopsy is going to be done.

• In some cases, a small incision is created in the breast. The needle used in the biopsy is placed into the tissues of the breast via this incision to extract the tissue sample. An imaging test is utilized to direct the needle to the correct site. A small tissue marker, called a clip, is utilized and placed into the biopsy site. This marker is shown in mammograms or other imaging examinations; thus, the same spot can be discovered for the remaining treatment or used in follow-up. After the tissue has been removed, the needle is also removed. Sutures are often unnecessary, but pressure is applied to control bleeding. Then, dressing is done in the area.

What Are the Types of Image-Guided Core Needle Biopsies?

There are three major kinds of image-guided biopsies: stereotactic, which uses imaging techniques like a mammogram or tomosynthesis-guided procedure; ultrasound-guided procedure; and MRI-guided procedure.

• Stereotactic (Mammogram or Tomosynthesis-Guided Core Needle Biopsy: In this procedure, the surgeon uses an imaging mammogram from various angles to specify the biopsy site. A computer examines the breast's X-ray and reveals the needle tip's location, which requires moving to the abnormal region. This type of biopsy checks tiny calcium deposits, small masses, or other abnormal areas that cannot be seen distinctly on an ultrasound.

• Ultrasound-Guided Core Needle Biopsy: The surgeon utilizes ultrasound to see the biopsy site in this procedure. This is accomplished in a lying-down position. An ultrasound is used to review the area, clean the site, and give anesthesia. Ultrasound is then again utilized to instruct the needle into the right site. A biopsy marker (clip) is placed in the biopsy area. A mammogram is performed after the biopsy to verify the clip is properly positioned.

• MRI-Guided Core Needle Biopsy: This procedure uses MRI to discover and biopsy the questionable site. This is done if any suspected lesion is detected on a mammogram or MRI.

What to Expect After a Core Breast Biopsy?

After a core breast biopsy, the person can experience swelling and bruising in the affected area for a few days. The healthcare provider may prescribe Acetaminophen to relieve pain, advise the patient to sleep on their back or side, and apply a cold pack for ten to 15 minutes. If the patient experiences increased pain, fever, chills, bleeding, or drainage from the biopsy site, they should contact a healthcare provider.

What Is the Result of the Core Biopsy Test?

The pathologist will check the biopsy tissue to find the cancer cells. A core needle biopsy will show if cancer-causing cells are present in the specimen. But still, this test can miss a few types of cancer. If the core needle biopsy result cannot give a proper diagnosis, if needed, then there is a chance of the patient undergoing a second core needle biopsy or an open surgical biopsy.

What Are the Indications of Core Breast Biopsy?

The indications for core breast biopsy are as follows:

• To check breast mass.

• To evaluate nipple issues.

• It is recommended if the mammogram or MRI shows any suspicious issues.

• In the case of cancerous, non-cancerous, or calcified breast lesions.

What Are the Risks of Core Breast Biopsy?

The risks of core breast biopsy are as follows:

• Bleeding or fluid drainage from the biopsy area.

• Infection.

• Altered breast appearance.

• Swelling or bruising of the breast.

Conclusion:

In a few underdeveloped countries, fine needle aspiration cytology is still used to diagnose cancer. The procedure of core needle biopsy gives the most precise and optimal diagnosis. Hazards can be reduced with concentration to elements with strategy, and incorrect results can be reduced by having exact protocols for treatment following a biopsy if there is any mismatch in clinical, radiologic, and pathological categories results.