Diagnosis
Despite efforts to increase screening of older women, most women
have breast cancer first present to their family practitioner with
a lump in their breast.
The mainstay of breast cancer diagnosis is the triad of clinical
history, physical examination and imaging (either mammography or
ultrasound). If clinically indicated, a suspicious lump will then
be biopsied for histological confirmation of whether it is cancerous
of not. The biopsy is usually performed either with a fine needle
guided by ultrasound or with a larger "core" needle. The
diagnosis of breast cancer is confirmed by biopsy results.
A pathology report will usually contain a description of cell type
and grade. The most common invasive breast cancer cell type is infiltrating
ductal carcinoma. Other types include adenocarcinoma, and infiltrating
lobular carcinoma.
After diagnosis, the next phase is tumour staging - this aims to
measure the extent of the tumour and whether or not it has metastasized
(spread to distant sites).
Staging
The cancer is staged depending on factors which include the size
of the tumour, whether there is lymph node involvement or not and
whether there is distant spread of cancer cells.
Inflammatory Breast Cancer is automatically staged as Stage IIIb
or Stage IV if metastasis has occurred.
For suspicious, high risk cases, other investigations which include
CT scans, nuclear medicine imaging, chest X-rays and blood tests
will be done to look for any metastasis or secondary cancer that
has spread a long way from the site of the primary tumour.
Oncologists then assign a TNM code as a shorthand categorisation
which in turn determines treatment recommendations.One way of categorising
tumour is by staging it using the TNM system which is short for
Tumour, Nodes and Metastasis. Some biological features of the cancer
such as estrogen receptor and HER2-neu oncogene are also determined
as they also affect treatment recommendations.
Treatment
(Note: consult a trustworthy site such as www.breastcancer.org for
more complete and up-to-date information.)
The mainstay of breast cancer treatment is surgery with adjuvant
chemotherapy and/or radiotherapy.
One of the many unique things about Inflammatory Breast Cancer
is that chemotherapy should be given first before surgery which
is usually a mastectomy with lymph node removal in the axilla. Then
the patient will receive more chemotherapy and/or radiotherapy.
Depending on the staging and type of the tumour, just a lumpectomy
(removal of the lump only) may be all that is necessary or removal
of larger amounts of breast tissue may be necessary. Surgical removal
of the entire breast is called mastectomy.
Standard practice requires that the surgeon must establish that
the tissue removed in the operation has margins clear of cancer,
indicating that the cancer has been completely excised. If the tissue
removed does not have clear margins, then further operations to
remove more tissue may be necessary. This may sometimes require
removal of part of the pectoralis major muscle which is the main
muscle of the anterior chest wall.
During the operation, the lymph nodes in the axilla are also considered
for removal. In the past, large axillary operations took out 10-40
nodes to establish whether cancer had spread - this had the unfortunate
side effect of frequently causing lymphedema of the arm on the same
side as the removal of this many lymph nodes affected lymphatic
drainage. More recently the technique of sentinel lymph node dissection
has become popular as it requires the removal of far fewer lymph
nodes, resulting in fewer side effects.
At present, the treatment recommendations follow a pattern. This
pattern may be adapted as every two years a worldwide conference
takes place in St. Gallen, Switzerland to discuss the actual results
of worldwide multi-center studies. Depending an clinical criteria
(age, type of cancer, size, metastasis) patients are roughly divided
to high risk and low risk cases which follow different rules for
therapy. The following list is a compilation af possibilities:
after a breast preserving therapy (lumpectomy, quadrant-resection),
the high local recurrence risk (~40%) is reduced by radiation therapy
to the breast
if the lymph nodes are positive, the high mortality risk (30-80%)
is reduced by systemic treatment (either anti-hormones or chemotherapy).
in young patients, the most useful systemic therapy is chemotherapy
(usually regimens such as CMF,FAC,AC and/or taxol)
in older patients, the most useful systemic therapy is anti-hormone
therapy (tamoxifen, GnRH-analogues)
chemotherapy has increasing side effects as the patient's age passes
65
in patients with estrogen receptor negative tumours, the most useful
systemic therapy is chemotherapy
in patients with estrogen receptor positive tumours, the most useful
systemic therapy is hormone therapy
For some early tumours, systemic treatments may not be recommended.
Following mastectomy, radiation therapy may not be recommended if
the number of lymph nodes involved are less. For advanced tumours,
there is an established role for all three modalities of treatment
(surgery, radiation, systemic therapy) as the combination produces
the best results.
The emotional impact of cancer diagnosis, symtoms, treatment, and
related issues can be severe. Most larger hospitals are associated
with cancer support groups which can help patients cope with the
many issues that come up in a supportive environment with other
people with experience with similar issues.
On-line cancer support groups are also very beneficial to cancer
patients - especially those with Inflammatory Breast Cancer that
affects fewer patients - estimated at 4-6% of all breast cancer
patients.
Prognosis
Long term outcome depends on the staging of the breast cancer at
diagnosis and how well the cancer has been treated. Generally speaking,
the earlier the cancer is detected, the better the prognosis.
Breast Cancer Awareness
In the month of October, Breast Cancer is recognized by survivors,
family and friends of survivors and/or victims of the deadly disease.
A pink ribbon is worn to recognize the struggle that men and women
face when battling Breast Cancer.
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