Locally advanced breast cancer refers to stage IIIA and IIIB breast cancer where the cancer has spread locally but not to distant sites. It is typically treated with a multi-pronged approach including neoadjuvant chemotherapy to shrink the tumor followed by surgery if possible. Post-operatively, patients receive adjuvant chemotherapy, radiation therapy, and hormone therapy if the cancer is hormone receptor positive. The goal of neoadjuvant chemotherapy is to downstage the tumor to allow for breast conserving surgery rather than mastectomy in some cases. Prognosis depends on response to neoadjuvant chemotherapy and surgical margins. Inflammatory breast cancer, a rare but aggressive form of locally advanced disease, has a poorer prognosis despite intensive treatment
Dr. I. David Thanka Edison introduces Locally Advanced Breast Cancer (LABC), defined as stages IIIA and IIIB with no distant metastases.
Describes TNM staging for LABC, detailing characteristics of stages III A, III B, and III C.
Details key clinical presentations of LABC, including skin edema, tumor fixation, and axillary node involvement.
Outlines investigations including core needle biopsy, imaging methods, and the significance of receptor status in treatment planning.
Discusses the role of skeletal surveys in detecting metastases, highlighting the limitations of traditional X-rays versus bone scans.
Details treatment options including chemotherapy, surgery, radiotherapy, and hormonal therapy; introduces neoadjuvant and adjuvant chemotherapy.
Lists common chemotherapy regimens and their schedules, with specifics on drug combinations and their phases.
Summarizes common side effects associated with various chemotherapy classes used in treating breast cancer.
Discusses the use of Trastuzumab (Herceptin) in neoadjuvant therapy for HER2 positive breast cancer.
Describes methods for assessing response to chemotherapy, emphasizing the importance of ongoing evaluation during treatment.
Details various mastectomy techniques, including incisions and anatomical boundaries impacting surgery.
Discusses complications associated with Modified Radical Mastectomy (MRM) and potential long-term issues like Lymphangiosarcoma.
Outlines follow-up treatments including adjuvant chemotherapy, radiotherapy, and hormonal therapy considerations.Explains hormonal therapies suitable for ER/PR positive patients, including Tamoxifen and Aromatase Inhibitors.
Compares inflammatory and non-inflammatory breast cancers, emphasizing clinical implications and treatment approaches.
Details criteria for breast conservation surgery post-neoadjuvant therapy, highlighting successful factors for surgery.
Outlines follow-up examination frequencies for LABC patients, stressing the necessity of regular mammography.
LOCALLY ADVANCED BREASTCANCER
DEFINITION: Women with stage IIIA and IIIB
breast cancer have advanced local-regional breast
cancer but have no clinically detected distant
metastases.
• LABC includes stage III A and III B of TNM staging
– AJCC 2010
3.
TNM STAGING OFLABC
T N M
STAGE III A T3 N1 M0
T0-3 N2 M0
STAGE III B ANY T4 N0-2 M0
STAGE III C ANY T N3 M0
• TRIPLE ASSESSMENT.
•CORE NEEDLE BIOPSY - histology and receptor status
studies
• MAMMOGRAPHY to the contralateral breast
• METASTATIC WORK UP -
– Chest X Ray
– USG abdomen pelvis,
– Liver function tests
– CT chest,
– Skeletal survey by Bone scan or X-rays
– CT brain - only if symptoms suggestive.
• ROUTINE EVALUATION
INVESTIGATIONS
6.
Why no FNAC?
•Histological type, grade and receptor status is
must for all LABC
• Receptor status helps in selecting
chemotherapeutic agents
• Triple negative tumors – Adriamycin based
chemotherapy
• Her 2 positive tumors- Herceptin can be added
• Tumor may completely disappear after anterior
or neo adjuvant chemotherapy
7.
SKELETAL SURVEY
• Aroutine X-ray will pick
up metastatic lesion
only when 60% of the
bone is demineralized.
• Bone scanning will pick
up metastases even
<30% demineralization
in about 20–30% of
cases of stage III breast
cancer
8.
MANAGEMENT OF LABC
Optionsavailable:
I. Chemotherapy
II. Surgery
III. Radiotherapy
IV. Hormone Therapy
Multi-pronged approach adopted
Single approach ineffectual
8
10.
OPERABLE SUBSETS OFLABC
• Mobile axillary node
• No chest wall fixity
• Small skin involvement
• T3N1M0
11.
T3 N1 M0T any N2 M0
“Can achieve negative pathology margins” III B & III C
Management
Operable Non-operable
Surgery
Then adjuvant
Chemotheraphy
& Radiotheraphy
According
to
guidelines
Neoadjuvant
Systemic
therapy
12.
CHEMOTHERAPYAPPROACH
Types;
A. Neoadjuvant Chemotherapy(Anterior or upfront )
Administration of Cytotoxics in large operable tumours
before surgery
Reduce loco-regional tumour burden – downstage
Amenable to surgical resection after 3 doses
B. Adjuvant Chemotherapy
Administration of Cytotoxics after surgery
Eliminate clinically undetectable distant spread
C. Palliative Chemotherapy
Advanced Ca Breast
Metastatic Ca Breast
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NACT REGIMENS (HER2NEGATIVE
Dosage day cycle
CMF
Cyclophosphamide 600 mg/ m2 i.v Day 1 Every 21 days
Methotrexate 40mg/m2 i.v Days 1 & 8
5-Fluro Uracil 600 mg/ m2 i.v Days 1 & 8
CAF
Cyclophosphamide 600 mg/ m2 i.v Day 1 Every 21 days
Adriamycin
(Doxorubicin)
60mg/m2 i.v Days 1 & 8
5-Fluro Uracil 600 mg/ m2 i.v Days 1 & 8
4AC 4T 4 cycles of AC Day 1 Every 21 days
Followed by 4
cycles of Taxanes
Paclitaxel 175mg/ m2 i.v Day 1
Docetaxel mg/ m2 i.v
ROLE OF
HERCEPTIN(TRASTUZUMAB) IN
NACT
Monoclonal Ab. Blocks Her-2/Neu receptors
(Tyrosine kinase receptor)
Useful only in Her-2/Neu +’ve cases
• NACT regimen (Her2 positive)
– 4AC followed by Taxane and Trastuzumab
– Taxane for 12 weeks
– Trastuzumab 4mg/kg loading dose
– With 2mg/kg maintanence dose i.v weekly
– Or 6mg/kg i.v every 21 days
– For one year
18.
RESPONSE TO CHEMOTHERAPY
•Complete responders – 100%
• Partial responders – 50-99%
• Poor/non responders- <50% decrease or upto
25 % increase
• Progressive disease - >25% increase or
appearance of new lesions
19.
Locally Advanced BreastCancer
Duration of neoadjuvant chemotherapy
– Optimal duration of treatment is not known.
– Rule of thumb: “treat until maximal response.”
– May require from 2-8 treatments, depending on
rapidity of response.
– Patients should be assessed by multidisciplinary team
after every 2 cycles of chemotherapy to determine
optimal timing of surgery.
INCISIONS FOR MRM
CLASSICSTEWART ELLIPTICAL SKIN
INCISION FOR CENTRAL AND
SUBAREOLAR BREAST CANCERS.
MODIFIED STEWART OBLIQUE
ELLIPTICAL SKIN INCISION FOR INNER
QUADRANT BREAST CANCERS.
24.
VARIATION OF THEORR OBLIQUE
ELLIPTICAL INCISION FOR LOWER
INNER QUADRANT AND LOWER
MIDLINE (6 O'CLOCK) BREAST
CANCERS.
ORR INCISION FOR UPPER
OUTER QUADRANT
25.
GRAY INCISION FORMASTECTOMY IN
CARCINOMA BREAST WHICH EXTENDS TO
OPPOSITE SIDE.
RODMAN INCISION FOR MASTECTOMY.
FLAP RAISING
Skinflap thickness
varies with body
habitus
Ideally skin flap is 7 to
8 mm in thickness ,
inclusive of the skin and
telasubcutanea
28.
ANATOMIC BOUNDARIES OF
MRM
Lateral- anterior
margin of latissimus
dorsi muscle
Medial - midline of the
sternum
Superior - subclavius
muscle
Inferior - caudal
extension of the breast
2 to 3 cm inferior to the
inframammary fold
COMPLICATIONS OF M.R.M
•Injury/thrombosis of axillary vein
• Seroma—50-70%
• Shoulder dysfunction 10%
• Pain (30%) and numbness (70%)
• Flap necrosis/infection
• Lymphoedema (15%) and its problems
• Axillary hyperaesthesia (0.5-1%)
• Winged scapula
• Pectoral muscles atrophy if medial and lateral pectoral nerves
are injured
• Weakening of internal rotation and abduction of shoulder
occurs due to injury to thoracodorsal nerve
33
34.
LYMPHANGIOSARCOMA
(Stewart-Treve’s Syndrome)
Inipsilateral upper limb
Develops in people with
Lymphoedema after Mastectomy
with Axillary clearance.
3-5 years after development of
Lymphoedema
Presentation: Multiple subcutaneous
nodules
Requires Forequarter Amputation
Poor prognosis
34
35.
POST OP MANAGEMENT
•Adjuvant Chemotherpy
• Adjuvant Radiotherpy
• Hormonal therapy
36.
INDICATIONS FOR ADJUVANT
CHEMOTHERAPY
•All node positive patients
• Primary tumour >1cm in size
• Tumor 0.6 to 1 cm with high risk factors
• All locally Advanced Ca Breast
• Inflammatory Ca Breast
36
37.
INDICATIONS FOR ADJUVANTRADIO
THERAPY
Chest Wall Axilla
T3 tumour>5cm
Residual disease
LABC
Positive margin/close
surgical margin <2cm
Inflammatory
Carcinoma
4 or more nodes +’ve in
post menopausal females
1 or more nodes in pre
menopausal females
Extra-nodal spread
Axillary status
unknown/ not assessed
38.
EXTERNAL RADIOTHERAPY
Over Breastarea, axilla, Internal mammary and
Supra-clavicular area
Total dosage: 5000 cGy units
200-cGy units daily 5 days a week for 6 weeks
Internal Radiotherapy
38
39.
HORMONE-THERAPY APPROACH
Principles;
Usedin ER/PR +’ve patients only
All age groups included now
Relatively safe
Easy to administer
Adequate prophylaxis against Ca of opposite
breast
Useful in Metastatic Carcinoma
Reduces recurrence – improves quality of life and
longevity
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40.
LOCALLY ADVANCED BREASTCANCER
Hormonal Management, continued:LIMITIONS
• Rate of pathologic complete response is greatly
diminished.
• Rate of breast-conserving treatment is greatly
diminished.
• Response to treatment is much slower, e.g. 3-9
months.
41.
HORMONAL THERPY
Medical
i.Oestrogen Receptor Antagonists – Tamoxifen 20 mg
ii. Progesterone receptor Antagonist
iii. Oral Aromatase Inhibitors – Letrozole 2.5 mg OD, Anastrozole, Exemestane;
Aminoglutethimide [Medical Adrenalectomy]
iv. Androgens – inj.Testosterone propionate 100mg IM three times a week,
Fluoxymestrone 30 mg daily
v. LHRH Agonists – Goserelin (Zoladex) [Medical Oophorectomy]
vi. Progestogens – Medroxypregesterone acetate 400 mg
Surgical
i. Ovarian Ablation by
a. Surgery (Bilateral Oophorectomy)
b. Radiation
ii. Adrenalectomy
iii. Pituitary ablation
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42.
Tamoxifen
SERM (SelectiveEstrogen Receptor Modulator)
Blocks cytosolic ER in breast tissue
Dose: 10 mg BD or 20 mg OD for 5 days
T1/2: 7 days. Shows effects after 4 weeks
Cheap, easily available, effective
Indications:
Carcinoma Breast
Fibroadenosis
Male infertility
Desmoid tumours
Side-effects:
‘Tamoxifen Flare’: Flushing, tachycardia, sweating, pruritis vulva,
vaginal atrophy and dryness (pre-menopausal), vaginal discharge
(post-menopausal), fluid retention, weight gain
Agonistic action: Endometrium (Ca), Bone (Osteoporosis, pathological
#), Coagulation system (DVT, TIA, CVA, MI)
42
43.
Letrozole
Non-steroidal competitiveinhibitor of Aromatase
Reduces Oestrogen levels by 98%
More expensive, more effective, fewer side-effects
Indications:
1. Adjuvant Endocrine therapy in Post-menopausal women
with hormone sensitive breast cancer
2. Metastatic disease
3. Recurrent disease
Dosage: 2.5 mg OD for 5 years or for 3 years after
Tamoxifen
Side-effects: Vaginal atrophy, bleeding p.v, CVS
problems and osteoporosis.
43
44.
Novel drugs -Biologicals
1. TRANSTUZUMAB (Herceptin)
Monoclonal Ab. Blocks Her-2/Neu receptors
(Tyrosine kinase receptor)
Useful only in Her-2/Neu +’ve cases Metastatic
d/s
Intravenous infusion 4mg/kg loading, 2mg/kg
maintenance dose for 1 year
2. BEVACIZUMAB
Vascular Growth Factor receptor inhibitor
3. LAPITINAB
Combined Growth Factor receptor inhibitor
44
45.
Inflammatory Ca Breast
‘Mastitiscarcinomatosis’/ ‘Lactating Ca of Breast’
– 2% incidence
– Younger age
– T4d LABC (Stage IIIB)
– FNAC or incision biopsy
– Neoadjuvant ChemoT and RT
– Surgery (if downstaged) + Axillary clearance
– Five years survival 25-30%
45
46.
Inflammatory Vs Noninflammatory
BreastCancer
Inflammatory Noninflammatory
Dermal lymph vessel invasion is present
with or without inlflammatory changes
Inflammatory changes are present without
dermal invasion
Cancer is not not sharply delineated Cancer is better delineated
Erythema and Edema frequently involve
>33% of the skin over breast
Erythema is confined to the lesion , and
Edema is less extensive
Lymph node involvement is >75% of cases Lymph nodes are involved in approximately
50% of the cases
Distant metastases are present in 25% of
the cases
Distant metastases are less common at
presentation
Distant metastases are more common at
initial presentation
47.
BCS in LABC
•Following neoadjuvant therapy , down staging
of breast cancer allow for breast conservation
sugery.
• SELECTION CRETIRIA
Complete resolution of skin edema
Residual tumour diameter <5cm
Absence of known multicentric
disease/extensive lymphatic invasion
48.
Follow-up
• Clinical examinationin detail @ regular
intervals
• Yearly/2-yearly Mammography of the treated
and contralateral breast is a must
• Bone-scan, CT Chest/abdomen, tumour
markers are done only if there is clinical
suspicion. Not a regular routine follow-up at
present
SR_Ca_Breast_Rx 48