BREAST Flashcards

(46 cards)

1
Q

what percentage of breast cancer occurs in men?

A

<1%

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2
Q

DCIS is a precursor of invasiveness in the ____ breast

A

ipsilateral

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3
Q

is LCIS a premalignant change?

A

no

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4
Q

LCIS is a marker for…

A

increased risk of development of malignancy in either breast

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5
Q

most common breast cancer?

A

invasive ductal carcinoma

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6
Q

what percent of DCIS progress to invasive ductal carcinoma if left?

A

50%

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7
Q

how is DCIS treated?

A
  • wide local excision with clear margins and radiotherapy

- masectomy for large lesions or multicentric disease

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8
Q

how many grades of DCIS is there?

A

1-3 (according to the nuclear atypia and tubule differentiation)

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9
Q

what percentage of breast cancers express hormone receptors?

A

70%

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10
Q

what does mammogram of DCIS show?

A

microcalcifications

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11
Q

what is triple assessment?

A

clinical
radiological
pathological

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12
Q

downside of FNA?

A

-doesnt differentiate between invasive and non-invasive

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13
Q

uses of core needle biopsy?

A

-tells you receptor status, differentiates between carcinoma in situ and invasive carcinoma

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14
Q

when is wire guided open excision biopsy used?

A

when a core needle biopsy fails

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15
Q

What does TNM stand for?

A

TUMOR
NODES
METASTASIS

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16
Q

Tis

A

Tumour in situa

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17
Q

T0

A

No primary tumour located

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18
Q

T1

A

Tumour < 2cm

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19
Q

T2

A

Tumour 2-5 cm

20
Q

T3

A

Tumour > 5 cm

21
Q

T4

A

Tumour extends to chest wall

22
Q

N0

A

no nodes involved

23
Q

N1

A

mobile ipsilateral axillary nodes

24
Q

N2

A

fixed ipsilateral axially nodes

25
N3
ipsilateral supraclavicular nodes
26
M0
no metastasis
27
M1
distant metastasis
28
types of breast reconstruction following masectomy?
implant reconstruction | autologus reconstruction
29
types of autologus reconstruction
free flap - DIEP | pedical flap - lattismus dorsi flap
30
if a sentinal node is positive what is the next step?
axillary clearance of all lymph nodes
31
which nerve is at risk during axillary node clearance?
long thoracic nerve | thoracodorsal nerve
32
common complications of axillary node clearance?
- axillary numbness | - lymphedema in arm
33
Where are the 3 levels of axillary node clearance?
lateral to and medial to and behind the pec muscles
34
what is tamoxifen?
SERM
35
who is treated with tamoxifen?
ER+ premenopausal patients
36
what is anastrazole?
-aromatase inhibitor
37
who is treated with anastrazole?
-ER+ postmenopausal patients
38
what is herceptin (trastuzamab)?
antibody directed at HER2 (in HER+ patients)
39
what is lapatinib?
a tyrosine kinase inhibitor for EGFR and HER2
40
what is an oncotype dx test?
a test that analyzes 21 genes to determine prognostic factors and whether a patient with early stage breast cancer would benefit from chemo
41
dx of fibroadenoma?
ultrasound followed by core biopsy
42
what is a fibroadenoma made of?
breast, epithelial and fibrous tissue
43
diagnosis of breast cyst?
FNA, mammography to rule out malignancy
44
treatment of fibrocystic disease
evening primrose oil to releive discomfort
45
most common cause of gynecomastia in young males
cannabis
46
most common cause of gynecomastia in older males
spironolactone