Breast Conditions Flashcards

1
Q

Cyclical Mastalgia

A

Typically, cyclical pain affects both breasts, beginning a few days before the beginning of menstruation and subsiding at the end. It is caused by hormonal changes, therefore most cases come in those actively menstruating or using HRT

Pain is usually diffuse and bilateral (may be more severe in one breast). It varies in intensity according to the phase of the menstrual cycle
There may be generalised swelling and lumpiness but no specific lump found.

ex: benign fibrocystic breast disease

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2
Q

Cyclical Mastalgia treatment

A
  • Women should be advised to wear a supportive bra.
  • use paracetamol and/or ibuprofen, or a topical NSAID
  • Conservative treatments include flax seed oil and evening primrose oil (not routinely given).
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3
Q

Non-cyclical Mastalgia

A
More likely to be unilateral or focal
DDx
- Mastitis
- Breast trauma
- Breast cysts
- Benign breast tumours.
- Breast cancer.
- Medications: HRT, COCP, antidepressants (sertraline, venlafaxine, mirtazapine), haloperidol, digoxin, spiranolactone, metronidazole, ketoconazole
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4
Q

Mastalgia - extra-mammary causes

A
  • MSK, eg costochondritis, Tietze’s syndrome, Cervical and thoracic spondylosis/radiculopathy, fibromyalgia
  • Pregnancy
  • Herpes zoster
  • Coronary artery disease/angina, pericarditis, PE
  • GORD, PUD
  • Sickle cell anaemia
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5
Q

Nipple discharge - differentials and assessment

A

Clear: physiological, during breast feeding
Milky: Pregnancy/pituitary adenoma (hyperprolactinemia)
Brown/green: mammary duct ectasia
Bloody: Intraductal papilloma 90%, Cancer 10%
or infection

Assessment

  • clinical examination (any mass lesion should undergo triple assessment)
  • consider mammography
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6
Q

Mastitis - features

A
  • Associated with lactation
  • Skin becomes dry and cracked
  • Usually staphylococcus
  • Clinically: Erythema, tender, hot, patient unwell
  • Need to rule out inflammatory breast cancer

If left untreated, mastitis may develop into a breast abscess. This generally requires incision and drainage.

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7
Q

Mastitis - management

A

The first-line management of mastitis is to continue breastfeeding.

The BNF advises treating ‘if systemically unwell, if nipple fissure present, if symptoms do not improve after 12-24 hours of effective milk removal of if culture indicates infection’.

The first-line antibiotic is flucloxacillin for 10-14 days, Breastfeeding should continue during treatment.

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8
Q

Breast Abscess

A

Lactational/non lactational
Periareolar/peripheral
Associated with smoking
Infection is usually with Staphylococcus aureus

Clinically: Erythematous, hot tender on palpation, swelling, fluctuant, patient may be systemically unwell

Management: Antibiotics, US guided aspiration. If any necrosis, may need excision of overlying skin

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9
Q

Duct Ectasia

A

Dilatation and shortening of the terminal breast ducts within 3cm of the nipple. It is common and the incidence increases with age. It typically presents with slit like retraction of the nipple and creamy nipple discharge.

  • Most common in menopausal women
  • Discharge typically thick and green in colour
  • Most common in smokers
  • May present with a tender lump around the areola

If ruptures may cause local inflammation, sometimes referred to as ‘plasma cell mastitis’

Patients with troublesome nipple discharge may be treated by microdochectomy (if young)(removal of lactiferous duct) or total duct excision (if older).

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10
Q

Benign breast conditions - ddx

A
  • Fibroadenoma
  • Breast cysts
  • Fibrocystic disease
  • Duct papilloma
  • Epithelial hyperplasia
  • Fat necrosis
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11
Q

Fibroadenoma

A
  • Most common lesion of the breast
  • Occurs in up to 25% of women between 15-35yrs
  • Hormone dependent
  • Composed of connective tissue and proliferating epithelium developing from a whole lobule
  • Firm, non tender, highly mobile, single or multiple
  • no increased risk of malignancy

Management

  • Triple Assessment
  • Conservative/surgical - if >4 cm excision is usual + core biopsy to rule out phyllodes tumour
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12
Q

Breast Cyst

A
Common over 35, often perimenopausal
Fluctuates with menstrual cycle
Smooth, well demarcated from surrounding tissue
Firm, mobile, tender/non tender
Small increase in risk of malignancy

Management

  • Triple assessment - ‘halo appearance’ on mammography. US will confirm the fluid filled cyst
  • Treat by Aspiration - if bloody fluid aspirated will need biopsy or if complete resolution not achieved may need surgical excision
  • if purulent: send for culture and give abx
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13
Q

Fibrocystic disease (aka fibroadenosis or benign mammary dysplasia)

A
  • Most common between ages 30- 50
  • Loose association of cyst formation, breast nodularity, stromal proliferation, and epithelial hyperplasia
  • A/w Imbalance of progesterone and estrogen
  • Clinically -bilateral pain, usually cyclical, breast swelling /lumpy breast, palpable mass and heaviness

Management

  • Triple Assessment
  • Conservative management - supportive bra, pain relief
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14
Q

Duct Papilloma

A
  • Local areas of epithelial proliferation in large mammary ducts: hyperplastic lesions rather than malignant or premalignant
  • May present with blood stained nipple discharge
  • Large papillomas may present with a mass
  • No increase risk of malignancy
  • Treatment –> Microdochectomy
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15
Q

Epithelial Hyperplasia

A
  • Variable presentation ranging from generalised lumpiness through to discrete lump
  • Disorder consists of increased cellularity of terminal lobular unit, atypical features may be present
  • Atypical features and family history of breast cancer confers greatly increased risk of malignancy

Treatment

  • no atypical features –> conservative, watchful wait
  • atypical features –> close monitoring or surgical resection
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16
Q

Breast Cancer - risk factors

A
  • Increasing age (>50)
  • BRCA1, BRCA2 genes - 40% lifetime risk of breast/ovarian cancer
  • 1st degree relative premenopausal with Ca breast
  • nulliparity, 1st pregnancy > 30 yrs, early menarche, late menopause, not breastfeeding
  • HRT or COCP use
  • ionising radiation
  • p53 gene mutations eg Li-Fraumeni
  • obesity
  • smoking, alcohol
17
Q

Breast cancer - presentation

A
  • Lump –hard, irregular, tethered
  • Change in shape
  • Ulceration
  • Skin changes e.g. Peau d’orange
  • Inflammatory breast cancer = cancerous cells block the lymph drainage resulting in an inflamed appearance
  • Nipple changes e.g. Paget’s disease, discharge, inversion
  • Metastatic cancer – axillary lumps, incidental on scans
18
Q

Paget’s Disease of the nipple

A

Eczematoid change of the nipple associated with an underlying breast malignancy and it is present in 1-2% of patients with breast cancer.

Paget’s disease differs from eczema of the nipple in that it involves the nipple primarily and only latterly spreads to the areolar (the opposite occurs in eczema).

Diagnosis is made by punch biopsy, mammography and ultrasound of the breast.

Treatment will depend on the underlying lesion.

19
Q

Breast Cancer - types

A

Most breast cancers arise from duct tissue followed by lobular tissue, described as ductal or lobular carcinoma

  • Invasive ductal carcinoma - most common type of breast cancer. This has recently been renamed ‘No Special Type (NST)’. In contrast, lobular carcinoma and other rarer types* are classified as ‘Special Type’
  • Invasive lobular carcinoma
  • Ductal carcinoma-in-situ (DCIS)
  • Lobular carcinoma-in-situ (LCIS)

*rarer types of breast cancer include medullary, mucinous, tubular cancer, lymphoma of the breast, phyllodes or cystosarcoma phyllodes etc.

20
Q

Ductal carcinoma in situ (DCIS) - features

A
  • Pre-invasive cancer picked up due to abnormal calcification in breast
  • Can be palpable or impalpable (detected by screen)
  • Malignant cells within ducts
  • Proportion progress to invasive cancer
  • Classification: low, intermediate and high nuclear grade
  • Treatment: excision of tumour (mastectomy only if DCIS is large) +/- radiotherapy +/- endocrine therapy
21
Q

2WW referral for breast cancer

A

Refer people using a suspected cancer pathway referral (for an appointment within 2 weeks) for breast cancer if they are:

  • aged 30 and over and have an unexplained breast lump with or without pain or
  • aged 50 and over with any of the following symptoms in one nipple only: discharge, retraction or other changes of concern eg Paget’s/skin changes
22
Q

Triple Assessment

A

Done if they have signs or symptoms that meet the breast cancer “2 week wait” referral criteria

  1. History and exam - breast exam
  2. Imaging
    - Mammography (most cases, older women)
    - US (more useful in young women or male pts)
  3. Biopsy
    - Core biopsy provides full histology
    - FNA more useful for recurrent cystic disease
23
Q

What does ER, PR and Her2 status mean?

A
  • ER: estrogen receptor*
  • PR: progesterone receptor*
  • Her 2: In about 20% of breast cancers, the cells make too much of a protein known as HER2. These cancers tend to be aggressive and fast-growing. These are treated with the targeted drug trastuzumab (Herceptin)

*ER/PR-positive are much more likely to respond to hormone therapy than tumors that are ER/PR-negative

24
Q

Triple negative Breast cancer

A
  • ER, PR and Her 2 negative
  • More aggressive type and has a poorer prognosis than other types of breast cancer, mainly because there are fewer targeted medicines that treat it
  • Recurrence rates are much higher
25
Q

Breast Cancer - treatment options

A
  • Surgery: Excision of tumour, Axillary surgery
  • Radiotherapy
  • Chemotherapy
  • Endocrine-targeted therapy
  • Molecular-targeted therapy
26
Q

Surgical Management

A

Stages 1-3

  1. Wide Local Excision - Around two-thirds of tumours
    Indications: solitary lesion, peripheral tumour, small lesion in large breast, DCIS < 4 cm
  2. Mastectomy
    Indications: multifocal tumour, central, large lesion in large breast, DCIS > 4 cm

Women should be offered breast reconstruction to achieve a cosmetically suitable result regardless of the type of operation

  1. Axillary Surgery
27
Q

Wide Local Excision - features

A
  • Simple WLE, or “lumpectomy”: Smaller tumours, relative to breast size; Can be image-guided (wire, radio-isotope, ultrasound marker) for screen-detected tumours
  • Complex WLE: used for larger tumours but for patients who still want most breast conservation (avoid mastectomy)
28
Q

Mastectomy

A

First choice for some women (e.g. to reduce risk residual/recurrent disease or to avoid radiotherapy) or if they have high risk family

  • simple mastectomy: Remove all redundant skin with breast tissue
  • skin-sparing mastectomy: Remove just the breast parenchyma (sub-cutaneous) – IMMEDIATE reconstruction
29
Q

Axillary Surgery

A

Purpose

  • To determine if nodes are involved
  • To determine need for adjuvant chemotherapy

Methods

  • Sentinel node biopsy*
  • Axillary node sampling
  • Axillary node clearance – therapeutic + staging
  • blue dye and a radioactive tracer follows the draining lymphatics from the tumour. Usually first one or two nodes to drain a cancer
30
Q

Radiotherapy

A

Whole breast radiotherapy is recommended after a woman has had a WLE as this may reduce the risk of recurrence by around two-thirds. For mastectomy, radiotherapy is offered for T3-T4 tumours and for those with four or more positive axillary nodes

31
Q

Hormonal Therapy

A
  • used for hormone positive cancers (ER, PR)
  • tamoxifen usually for next 5 years after diagnosis. Used in pre- and peri-menopausal women
  • In post-menopausal women, aromatase inhibitors such as anastrozole or letrozole are used

Tamoxifen –> Selective oEstrogen Receptor Modulators (SERM) = oestrogen receptor antagonist and partial agonist. S/E = increased risk of endometrial cancer, venous thromboembolism and menopausal symptoms.

32
Q

Biological (molecular) Therapy

A

The most common type of biological therapy used for breast cancer is trastuzumab (Herceptin). It is only useful in the 20-25% of tumours that are HER2 positive.

Trastuzumab cannot be used in patients with a history of heart disorders.

33
Q

Chemotherapy

A

Cytotoxic therapy may be used to either downstage a primary lesion or after surgery depending on the stage of the tumour, for example if there is axillary node disease.

Can also be used before surgery as neoadjuvant therapy - for example in triple negative breast cancer

34
Q

Breast Cancer Staging

A
Tumour
T1 <2cm
T2 2-5cm
T3 >5cm
T4 a) chest wall,  b) skin,  c) both,  d) inflammatory

Nodes
N1 mobile in axilla/1-3 +ve
N2 stuck in axilla/ 4-9 +ve
N3 supraclavicular/ > 9 nodes

35
Q

Breast Cancer Screening

A
  • Currently for women between 50 - 70 y/o every 3 years, plans to expand age from 47 to 73
  • Women are offered a mammogram every 3 years
36
Q

Screening for cases with +ve family history

A

If the person concerned only has one first-degree or second-degree relative diagnosed with breast cancer they do NOT need to be referred unless any of the following are present in the family history:

  • age of diagnosis < 40 years
  • bilateral breast cancer
  • male breast cancer
  • ovarian cancer

In other words, screening can be offered to younger patients if they have a family history and their relatives were <40 years OR male OR bilateral cancer OR ovarian cancer OR more than one relative with breast cancer