Diagnosis and Staging Jo Anne Zujewski MD Head
- Slides: 45
Diagnosis and Staging Jo. Anne Zujewski, MD Head, Breast Cancer Therapeutics Clinical Investigations Branch Cancer Therapy Evaluation Program Division of Cancer Diagnostics and Treatment May 2011
NEJM, November 23, 2000
Early Detections reduces the risk of dying from breast cancer.
Cancer Diagnosis: Defining the Cancer • The first step in designing the treatment plan is carefully defining the cancer – Clinical examination – Radiology tests – Pathology tests – Blood tests
Breast Cancer Signs and Symptoms • • None Lump or mass Pain in breast Tenderness Thickening Firmness Nipple discharge • • Skin redness Asymmetry Enlargement Nipple retraction Dimpling Mass in axilla (armpit) Warmth
BREAST CANCER
Defining the Cancer: Radiology • Radiologic imaging can help determine the location and spread of the cancer – Local extent – Regional lymph nodes – Distant spread (metastases)
Mammography Technique
Mammography
Mammography Sensitivity in Younger Women • Screening mammograms miss up to 25% of breast cancers in women in their 40 s, compared to 10% of cancers for older women
Ultrasound
Breast MRI • Important new tool for imaging the breast • High sensitivity • Detection and characterization of otherwiseoccult breast carcinoma
Breast Cancer Diagnosis • Any breast change or lump needs to be evaluated • Breast cancer needs to be diagnosed by biopsy – Fine needle aspiration – Core needle biopsy – Surgical biopsy
Mammotone & Minimally Invasive Breast Biopsy (MIBB) The Mammotone and MIBB are different from the core needle biopsy in that a needle is inserted once and multiple specimens are removed through contiguous sampling. Core needle biopsies require the needle to be inserted multiple times. Both the Mammotone and MIBB biopsy utilize a vacuum system. A probe is inserted and samples of tissue are collected in a chamber. Tissue samples are removed by action of a gentle vacuum.
Advantages of Needle Biopsies • • • Simple procedure – does not require surgery Accurate Quick – only takes a few minutes Not painful Inexpensive Quick results
Disadvantages of Needle Biopsies • Entire lump is not removed • Open biopsy may be necessary For Fine Needle Only: • Specialist needed to read results • In situ cancer not distinguishable from invasive cancer
Image Guided Biopsy in Clinical Practice • • Allows treatment planning Better cosmesis Can mark site with clip Less costly • Needs specialized equipment • May still require confirmatory pathology in minority of cases
Breast Biopsy A core needle biopsy of the area is recommended Non. Surgical
Ultrasound-Guided Breast Biopsy
Ultrasound
Image Guided Biopsy
Wire Localization: Example
Inking the Tumor Specimen in the O. R.
Needle Biopsies • Fine Needle – A thin, hollow needle is used to remove a sample of tissue. The procedure is quick and can be done in a doctor’s office. • Core Needle – A larger needle is inserted through a small incision in the skin, and a small core of tissue is removed. This type of needle biopsy is done with the assistance of mammography or ultrasound imaging using stereotactic techniques with the aid of the computer, which calculates the precise location of the lump.
Incisional Biopsy • A surgical procedure where only a portion of a tumor is removed • Generally reserved for lumps that are larger • Performed under local anesthesia in a hospital or outpatient clinic
Excisional Biopsy • A surgical procedure that removes the entire suspected area plus some surrounding normal tissue. • Standard procedure for lumps that are smaller than an inch or so in diameter • Similar to a lumpectomy • Performed under local anesthetic or general anesthesia in a hospital or outpatient clinic
Advantages of Open Biopsies • Quick – takes only one hour • More accurate than a needle biopsy • Larger samples provide information for treatment plan Excisional Only: • Removes entire lump • May be the only surgical treatment needed
Disadvantages of Open Biopsies • Surgical procedure • Expensive • Side effects such as infection or blood collection under the skin Excisional Only: • Removing tissue can change the look and feel of the breast
Cancer is diagnosed in 1 of 5 breast biopsies
Staging
Breast cancer Spread to lymph nodes Supraclavicular Subclavicular Mediastinal Distal (upper) axillary Internal mammary Central (middle) axillary Interpectoral (Rotter’s) Proximal (lower) axillary
Breast Cancer: Stage I T 1 N 0 M 0 T 1 a: T 0. 5 cm T 1 b: 0. 5 cm < T 1 cm T 1 c: 1 cm < T 2 cm T 1 T 2 cm N 0 = no regional lymph node metastasis M 0 = no distant metastasis
Breast Cancer: Stage IIA T 0 T 1 } N 1 M 0 T 2 N 0 M 0 T 0 No evidence of tumor T 2 2 cm < T < 5 cm N 1 = metastasis to movable ipsilateral axillary lymph node(s) M 0 = no distant metastasis
Breast Cancer: Stage IIB T 2 N 1 M 0 T 3 N 0 M 0 T 3 T > 5 cm N 1 = metastasis to movable ipsilateral axillary lymph node(s) (p) N 1 a, N 1 b M 0 = no distant metastasis
Breast Cancer: Stage IIIA T 0 T 1 T 2 T 3 N 1 M 0 Metastasis to ipsilateral axillary lymph node(s) N 1 = movable N 2 = fixed to one another or to other structures M 0 = no distant metastasis N 2 M 0
Breast Cancer: Stage IIIB T 4 any N M 0 Any T N 3 M 0 T 4 Tumor of any size with direct extension to chest wall or skin T 4 d = inflammatory carcinoma N 3 = metastasis to ipsilateral internal mammary lymph node(s) M 0 = no distant metastasis
Breast Cancer: Stage IV Any T any N M 1 = distant metastasis (including metastases to cervical, or contralateral internal mammary lymph nodes)
Staging for Distant Disease: Breast Cancer FDG PET scan Bone Scan Patient A Patient B Multiple bone metastases Tumor in the breast, but not elsewhere The most common sites of distant disease in breast cancer are the bones, liver and lungs
BREAST CANCER 5 -year survival: Number of positive axillary lymph nodes 80% 5 -Year Survival 60% 40% 20% 0% 0 1 2 3 4 5 6 -10 11 -15 16 -20 >20 Number of Positive Nodes Harris J, et al. Cancer: Principles & Practice of Oncology. 5 th ed. 1997; 1557 -1616.
How effective is therapy for breast cancer? Relative 5 Year Survival (%) Site 19741976 19831985 19921997 19962003 Breast 75 78 86 89. 8 SEER, 1973 -2003, DCP, NCI, 2009
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