Common Breast Disease Dr. Chan Wing Cheong Surgeon-in-charge Breast Surgery, NTEC Breast Anatomy and Location of Disease Processes Normal Breast Histology Lymphatic Drainage Axillary nodes level 1,2,3 most of the breast drain into axilla. pectoral nodes / breast and anterior chest wall sub scapular nodes / posterior chest wall and arm lateral nodes/ arm central (medial and apical) nodes/ drains all of the above three groups of nodes Infraclavicular Supra-clavicular nodes Internal mammary nodes Abdominal nodes Normal Breast Development and Physiology At puberty the breast develops under the influence of the hypothalamus, anterior pituitary, and ovaries and also requires insulin and thyroid hormone During each menstrual cycle 3 to 4 days before menses, increasing levels of estrogen and progesterone cause cell proliferation and water retention. After menstruation cellular proliferation regresses and water is lost. During pregnancy cellular proliferation occurs under the influence of estrogen and progesterone, plus placental lactogen, prolactin and chorionic gonadotropin. At delivery, there is a loss of estrogen and progesterone, and milk production occurs under the influence of prolactin. At menopause involution of the breast occurs because of the progressive loss of glandular tissue. ANDI classification ( Hughes et al, 1992 ) Normal Aberration ?? Disease Reproductive phases Periductal mastitis Involution cysts, duct ectasia, mild epithelial hyperplasia Cyclical & secretory cyclical mastalgia & nodularity Development fibroadenoma, juvenile hypertrophy Epithelial hyperplasia with atypia Giant fibroadenoma (> 5cms) Spectrum of breast changes Multiple fibroadenomata (> 5 per breast) Aetiopathogenesis – Some Theories Endocrine factors 1. Disturbances in the Hypothalamo Pituitary Gonadal steroid axis 2. Altered Prolactin profile – qualitative /quantitative change Non endocrine factors 1. Methyl xanthines, Stress Genetic predisposition to catecholamine supersensitivity Intra cellular C - AMP mediated events 2. cellular proliferation Diet rich in saturated fat Altered plasma essential fatty acid profile receptor supersensitivity to normal levels of Oestrogen & Progesterone 3. Iodine deficiency Receptor supersensitivity to normal levels of Oestrogen & Progesterone Carcinogenesis – Genetic Predisposition Common Presenting Symptoms Over 80 % Lump Painful lump or lumpiness Pain Under 20 % Nipple discharge Nipple change Miscellaneous Symptoms & Possible Diagnosis 1.Lump Carcinoma Fibroadenoma Juvenile Fibroadenoma Giant fibroadenoma Phyllodes tumours Cysts / Galactocele 2.Pain Mastalgia : Cyclical & Non cyclical 3.Nipple discharge Physiological Bloodstained in pregnancy Intraductal papillomas / papillocarcinoma Duct Ectasia Galactorrhoea 4.Nipple change Developmental inversion of nipple Acquired nipple retraction : duct ectasia, periductal mastitis etc Eczema Paget’s disease etc. Infections : Lactational & Non-lactational 5.Cosmetic & other problems Comon cosmetic problems : size, shape & symmetry of breast mound Uncommon cosmetic problems : developmental & acquired Trauma Rare problems Benign vs. Malignant Triple Assessment for Breast Problem Clinical Symptoms & signs Assessment of risk factors Imaging Ultrasonography / Mammography Other imaging tests Pathological Fine needle aspiration cytology Core biopsy Case Scenario Case 1 F/22 Right breast swelling for 1 month No other symptoms What are the questions you want to ask? Case 1 USG breast: Compatible with a 1.5 cm fibroadenoma What would you offer her? What is the natural history of fibroadenoma? Case 2 Same lady as case 1 No surgery after discussion However Come back 7 months later Size of lesion increases up to 5 cm What investigation do you want to do? Case 2 USG Compatible with a giant fibroadenoma or phylloides tumour Do you want to do FNA? What would you offer? Case 2 Wide local resection performed Pathology: Phylloides tumour of undetermined malignant potential, margins appear to be clear How do you advice this patient? Phyllodes Tumours Comprise less than 1% of all breast neoplasms May occur at any age but usually in 5th decade of life No clinical or histological features to predict recurrence 16 - 30% may be malignant Common sites of metastasis : lungs, skeleton, heart and liver Treatment of Phyllodes Tumours 1. Primary treatment Local excision with a rim of normal tissue 2. Recurrence Re excision or Mastectomy with or without reconstruction Response to chemotherapy and radiotherapy for recurrences and metastases poor Case 3 F/52 Recently noticed a left breast lump No pain No other breast symptoms Just menopause What other questions regarding her problem that you will ask ? Risk Estimation for Breast Cancer RELATIVE RISK <2 Early menarche < 12 years Late menopause > 55 years Nulliparity Proliferative benign disease Obesity Alcohol use Hormone replacement therapy RELATIVE RISK 2–4 Age 35 first birth First-degree relative with breast cancer Radiation exposure Prior breast cancer RELATIVE RISK >4 Gene mutation Lobular carcinoma in situ Atypical hyperplasia Case 3 P/E: 2.5 cm mass over upper outer aspect of left breast Quite mobile No palpable axillary LN What would you do next ? Case 3 Left Case 3 MMG / USG breast 2.5 cm mass No axillary nodes Core needle biopsy Invasive carcinoma What would you offer? Options Modified radical mastectomy MRM + reconstruction Autologus tissue flap Prosthesis Wide local excision + axillary dissection + post-op RT Any adjuvant therapy? Chemotherapy Radiotherapy ? Indications ? Indications Hormonal therapy ? Indications Case 4 F/55 Good past health Routine physical check-up Screening mammogram Left breast microcalcification What is your plan? Options Stereostatic core biopsy Mammotome Contra-indicated in suspicious lesion ( BIRAD ) For small & likely benign microcalcification Hook-wire guided excision biopsy For suspicious lesion Aims to achieve a clear margin Mammotome Biopsy Hook-wire Guided Excision If core biopsy confirms DCIS, what’s next? If solitary, < 3cm, not high grade Wide local excision + RT Otherwise, Total mastectomy +/- reconstruction Axillary node dissection not required Hormonal therapy if ER / PR positive Case 5 F/ 43 Recent onset of left breast mastalgia Clinically palpable thickening of breast tissue over L3H MMG not revealing Needle biopsy: insufficient material Thus open excision biopsy Case 5 Histopathology: Lobular carcinoma in situ No invasive component All margins appear to be clear of tumour cells What would you suggest to the patient? Lobular Carcinoma (15-20%) LCIS Invasive LC Case 6 F/ 36 Mother of 2 children Brownish stain on the inside of undergarment No pain No nipple change Differential Diagnosis? How would you like to investigate furhter? Ductogram What can be offered to the patient ? Case 7 F / 67 Not significant PMH Recent L breast pain What is the diagnosis ? What would you offer to her ? Management for individual problem Pain Mastalgia • Cyclical mastalgia • Non cyclical mastalgia •True (breast related) • Musculoskeletal : costochondral or lateral chest wall Infections • Lactational infections • Nonlactational infections True breast pain • Central : Periductal mastitis (inflammation, mass, abscess, mammary duct fistula) • Peripheral : associated with diabetes, rheumatoid arthritis, steroid usage, trauma etc. • Rare : Tuberculosis, Granulomatous mastitis, Diabetic (lymphocytic) mastitis, etc. • Skin associated : infected Sebaceous cyst, Hidradenitis suppurativa etc. Mastalgia Definition : Pain severe enough to interfere with daily life or lasting over 2 weeks of menstrual cycle True breast pain True breast pain Lateral chest Costo wall pain Chondral pain mild Musculo skeletal pain Management Protocol for True Mastalgia • • • • Assess type of pain Assess severity of pain ( Pain diary + Visual analogue scale ) Evaluation with Triple assessment Treatment : Reassurance is the key to management Use of supportive undergarments Low fat, Methyl xanthine restricted diet Stop Oral contraceptives / HRT etc Review patient. Successful in the majority ( 80 – 85 % ) of patients Use drugs in those not responding to non-pharmacological treatment Review and assess response Drugs of Established Value in Mastalgia Drug Dose Clinical response Side Comments effects Evening 3 g / day primrose oil Danazol Cyclical mastalgia 44 % Low ( 2% ) Efficacy as medicine Non cyclical mastalgia questioned. Marketing 27% authority withdrawn. 200mg / day reduced to Cyclical mastalgia 70% High (22%) More effective in Cyclical 100 mg on alternate Non cyclical mastalgia mastalgia. days (low dose regime) 30% Some side effects may be permanent. Bromocriptine Tamoxifen 2.5 mg twice / day Cyclical mastalgia 47% (incremental dose Non cyclical mastalgia regime) 20% 10 mg / day Cyclical mastalgia 94% High (45%) Not recommended due to serious side effects High (21%) Not licensed for use in Non cyclical mastalgia Mastalgia. 56% Used in Refractory mastalgia & relapse Goserelin 3.75 mg / month Cyclical mastalgia 91% High Major loss of trabecular intramuscular depot Non cyclical mastalgia bone limits use in Refractory injection 67% mastalgia & relapse Nipple Discharge Causes of nipple discharge Benign (common) Physiological causes Intraductal pailloma Blood stained nipple discharge of pregnancy Galactorrhoea Periductal Mastitis Duct Ectasia Malignant (less common) In situ carcinoma (DCIS) Invasive carcinoma Characteristics of Nipple Discharges Non significant nipple discharge Significant nipple discharge Elicited Spontaneous Age < 40 years Age > 60 years (new symtom) Bilateral Unilateral Intermittent Persistent Thick Watery Non troublesome Troublesome Multiductal Uniductal Negative test for blood (reagent stick test for Positive test for blood blood) Management of Spontaneous Nipple Discharge Spontaneous nipple dischare Triple assessment Normal Multi ductal Distressing symptoms Total duct excision Abnormal Uniductal Surgery Minor symptoms Minor symptoms/ No suspicion of malignancy Distressing symptoms/ No suspicion of malignancy Distressing symptoms/ Suspicion of malignancy Reassure Reassure Microdochectomy Surgery Galactorrhoea Causes of galactorrhoea Physiological causes Drugs Pathological causes Extremes of age Oestrogen therapy Hypothalamic lesions Stress Anaesthesia Pituitary tumors Mechanical stimulation Dopamine receptor blocking agents Reflex causes : Chest wall injury, Herpes Dopamine re-uptake blocker s zoster neuritis, Upper abdominal surgery Dopamine depleting agents Hypothyroidism Inhibitors of Dopamine turnover Renal failure Stimulation of serotoninergic system Ectopic production : Bronchogenic and Histamine H2-receptor antagonists renal carcinoma Management : Estimate Prolactin levels. If very high, evaluate for pituitary lesion Physiological - Reassurance, cessation of stimulation Drug induced - Stop or change drug if possible Pathological - Cabergoline / Bromocriptine, treat cause if possible ( e.g. Pituitary surgery ) Breast Mass Just prominent glandular tissue Cyst Simple vs. complex Abscess if painful and inflammed Solid mass Benign tumors Fibrocystic disease Carcinoma Fat necrosis Benign Lumps Cysts Common in the West ( 70 % of women ) 50% are solitary cysts 30% 2 - 5 cysts & rest have > 5 cysts Types Apocrine cysts Lined by secretory epithelium Cyst fluid has a Na : K ratio < 3 Likely to have multiple cysts Likely to develop further cysts Non-apocrine cysts Cyst fluid has a Na : K ratio >3 Resembles plasma Mixture of both Management Algorithm for Cysts Cyst (Clinical diagnosis) Fine needle aspiration Non blood stained aspirate No residual mass No cyst recurrence Residual mass Cyst recurrence (X3) No routine followup Surgical biopsy Blood stained aspirate FNAC/Surgical biopsy Fibroadenoma Types Solitary Few ( < 5 / breast ) Multiple ( > 5 / breast ) Giant ( > 4 / 5 cm ) & Juvenile Natural history Majority remain small & static 50% involute spontaneously No future risk of malignancy Management Algorithm for Fibroadenoma Fibroadenoma (clinical diagnosis) Triple assessment All results concurr Age < 30 years Results do not concurr Age > 30 years Multiple fibroadenomas (Selective triple assessment) Giant fibroadenoma/ Juvenile fibroadenoma Clinical observation for 2 years Excision with rim of normal tissue Excision of largest Clinical observation of rest Extracapsular Excision No change/ shrinkage / disappearence Increase in size/ At patient request Discharge with advice on BSE Extra capsular Excision Chances of malignancy masquerading as Fibroadenoma Age 20 – 25 yrs 1: 3000 possibility Age 25 – 30 yrs 1: 300 possibility Breast Carcinoma Breast Cancer – No. 1 Cancer Among Women in HK Most common cancer among women since 1994 No. 2 cancer killer among women in HK between 1981-1998 Due to decline in mortality rate, emerged as No. 3 cancer killer since 1999 According to 2002 figures, an average of 1 in 23 women would develop cancer An average of 1 in around 100 women would die from breast cancer In 2002, 2,059 new cases and 425 deaths were registered Risk Factors Cause of breast cancer is undetermined. However, the following risk factors are identified: History of breast cancer Family history of breast cancer, especially in first degree relatives Benign breast lesions – ADH, ALH etc. Early menarche, late menopause Late first pregnancy / no pregnancy Exogenous estrogen (HRT) Radiation How is Breast Cancer Treated ? The type of treatment recommended will depend on the size and location of the tumor in the breast, the results of lab. tests done on the cancer cells and the stage or extent of the disease. Treatment can be divided into local treatment or systemic treatment. Local treatments are used to remove, destroy or control the cancer cells in a specific area, such as the breast. Surgery and radiation treatment are local treatments. Systemic treatments are used to destroy or control cancer cells all over the body. Chemotherapy and hormone therapy are systemic treatments. A patient may have just on form of treatment or a combination, depending on her needs. The Importance of Staging TNM Classification TX T0 Tis Primary tumour cannot be assessed No evidence of primary tumour Carcinoma in situ or Paget’s disease of the nipple with no tumour. T1 2cm or less in greatest dimension T1a 0.5cm or less in greatest dimension T1b More than 0.5cm, but not more than 1cm in greatest dimension T1c More than 1cm but not more than 2cm in greatest dimension T2 Tumour more than 2cm but not more than 5cm in greatest dimension TNM Classification T3 tumour more than 5cm in greatest dimension T4 tumour of any size with direct extension to chest wall or skin T4a Extension to chest wall T4b Oedema (including peau d orange) or ulceration of the skin of breast or satellite skin nodules confined to same breast T4c Both T4a and T4b T4d Inflammatory carcinoma Regional Lymph Nodes (TNM) NX N0 N1 N2 N3 Regional lymph nodes cannot be assessed (e.g. Previously removed or removed for pathologic study) No regional lymph node metastasis Metastasis to movable ipsilateral axillary lymph node(s) Metastasis to ipsilateral axillary lymph nodes that are fixed to one another or to other structures Metastasis to ipsilateral internal mammary lymph nodes(s) Distant Metastasis (TNM) MX Presence of distant metastasis cannot be assessed M0 No distant metastasis M1 Distant metastasis (includes metastasis to ipsilateral supraclavicular lymph node) AJCC/UICC Stage Grouping Tis T1 T0 T1 T2 T2 T3 Stage 0 N0 M0 Stage I N0 M0 Stage IIA N1 M0 N1 M0 N0 M0 Stage IIB N1 M0 N0 M0 Stage IIIA T0 N2 M0 T1 N2 M0 T2 N2 M0 T3 N1 M0 T3 N2 M0 Stage IIIB T4 Any N M0 Any T N3 M0 Stage IV Any T Any N M1 Local-regional Control Surgery Toileting mastectomy Modified radical mastectomy (MRM) Wide local excision + axilla dissection Wide local excision + sentinel node biopsy Radiotherapy Must be given if breast conservative treatment is applied Otherwise depends on staging or resection margin Axillary Dissection Therapeutic vs. staging SLNB Systemic Control Chemotherapy AC or Taxol Indications: Positive axilla nodes Node negative Young age High grade tumor Size > 1 cm Hormonal receptors negative C-erb 2 positive ( Herceptin ) Hormonal therapy Mainly for tumors expressing hormonal receptors No age limit now Usually 5 years Tamoxifen, AI Cosmetic Consideration BCT Reconstruction Prosthesis Flap Prosthesis + flap Breast Conservation Treatment Must be accompanied with post-op RT Prosthesis Silicone gel saline bag Latissmus Dorsi Flap TRAM Flap TRAM Flap Questions & Answers Dr. Chan Wing Cheong Surgeon-in-charge Breast Surgery, NTEC