Dr. O'Neill is a regional expert in all aspects of breast disease, including breast cancer. Her services include:


Physician Exam

We perform a physical examination on each patient to identify symptoms and make an initial diagnosis.

In-Office Ultrasound

When necessary, we perform in-office ultrasound to help distinguish benign versus malignant masses in the breast.

In-Office Biopsy (Core Needle Biopsies)

When we are concerned that the mass is malignant, we perform an in-office biopsy and review the results within 24-48 hours.


Excision or Lumpectomy

When indicated, we may choose to remove the benign or malignant mass in a hospital setting.

Axillary Dissection

At times we may have to remove all the lymph nodes in the armpit to determine if the cancer has spread.

Partial or Total Mastectomy

Sometimes it may be necessary to remove all of the breast tissue in a hospital setting.

Sentinel Lymph Node Biopsy

As an alternative to axillary dissection, sometimes we can identify the first lymph node in the pathway from the tumor and remove just that lymph node.

Needle Localization

Occasionally, we may enlist the support of a radiologist in the hospital to use a guiding wire to determine where the mass tissue ends and the normal tissue begins.

Vascular Access

If chemotherapy is necessary, we can place a catheter in the vein to facilitate the chemotherapy.

Radiation Therapy

We are able to place special catheters in the breast cavity where the tumor was removed so that the radiation oncologists may place localized radiation pellets to kill any residual cancer cells.