Breast Imaging Flashcards

1
Q

why does the breast have to be compressed in an MMG?

A

has to be immobilised as x ray is of low exposure

breast needs to be of a uniform thickness

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2
Q

what colour is fibroglandular tissue on MMG?

A

white

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3
Q

what colour is fat on MMG?

A

grey

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4
Q

what women have lots of fibroglandular tissue?

A

young women (dense breasts)

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5
Q

what women have lots of fatty tissue?

A

older women

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6
Q

increased breast density presents with a ____ risk of breast cancer

A

increased

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7
Q

advantages of mammography?

A

images the whole breast
high sensitivity for DCIS and invasive cancer
reduces population mortality

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8
Q

1st sign of DCIS on MMG?

A

calcification

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9
Q

what benign breast disease can cause calcification?

A

ductal ectasia

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10
Q

when is tomosynthesis used in breast imaging?

A

NOT for screening

women with symptoms or something picked up on screening

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11
Q

what is contrast enhanced spectral mammography?

A

take a high energy image and a low energy image then subtract them from one another

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12
Q

most important imaging method for symptomatic women?

A

USS

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13
Q

indications for USS in breast medicine

A
palpable mass
MMG detected lesion 
image guided biopsy
breast inflam
breast problems in pregnancy
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14
Q

a solid lump can be differentiated from a cystic lump on USS T or F

A

T

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15
Q

what structures form disordered collagen seen in cancer

A

fibroblasts around the cancer, not the cancer itself

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16
Q

how is a women with a mass that feels like a fibroadenoma managed after USS?

A

nothing, women under 40 wont get a biopsy if it is indicative of a fibroadenoma

17
Q

most sensitive imaging modality for breast cancer detection

A

MRI

18
Q

what type of breast cancers are quite difficult to see on non-MRI imaging?

A

lobular cancers

19
Q

best imaging method for size and focality assessment?

A

MRI

20
Q

when would a woman get an MRI if she had a normal USS and MMG?

A

if she had a positive axillary node

21
Q

best biopsy method?

A

core biopsy

22
Q

most commonly used needle for core biopsy?

A

8 gauge

23
Q

commonest breast lump in women under 30

A

fibroadenoma

24
Q

commonest breast lump between 30 and 50

A

cyst

25
Q

commonest breast lump in women over 50

A

cancer

26
Q

how are abnormal nodes detected on USS?

A

cortical thickness >3mm

shape

27
Q

Ix nodes

A
  1. USS

2. core biopsy

28
Q

when would you do CT for mets in someone with breast cancer?

A

locally advanced cancer

recurrent breast cancer

29
Q

common sites of mets from a primary breast cancer

A
bone 
lung
pleura
liver
brain
30
Q

what mets imaging would you do in someone who is a candidate

A

CT:
chest
abdo
pelvis