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Rad > Mammo > Flashcards

Mammo Flashcards

1
Q

Level 1 axillary lymph node

A

lateral to pec minor

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2
Q

level 2 ax node

A

under pec minor

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3
Q

level 3 ax node

A

medial and above pec minor

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4
Q

rotter node

A

between pec minor and major

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5
Q

What is the best time to image breasts

A

follicular phase day 7-14

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6
Q

When is a LMO view obtained? 2

A

kyphosis/pectus excavatum or avoid pacer/line

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7
Q

How many cancer diagnoses should be made per 1000 mammos?

A

3-8

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8
Q

What should PPV be?

A

4%

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9
Q

Shape on mammo

A

ROI round oval irregular

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10
Q

Margin on mammo

A 
circumscribed
obscured
microlobulated
indistinct
spiculated
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11
Q

Margin on US

A 
circumscribed
angulated
microlobulated 
indistinct
spiculated
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12
Q

5 things to describe mass on US

A 
shape
margin
posterior features
echo pattern
orientation
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13
Q

Background parenchymal enhancement is based off of what on MRI?

A

1st post contrast sequence

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14
Q

What three categories are there for lesion analsysi on MRI?

A

foci, mass, non mass like enhancement

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15
Q

Margin on MRI

A

circumscribed irregular spiculated

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16
Q

What are the four internal enhancement patterns on MRI?

A

homogeneous
heterogeneous
rim
dark internal septation

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17
Q

What are the 7 types of non mass like enhancement on MRI?

A 
focal
linear
linear branching
segmental
regional
multiple regional
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18
Q

clustered ring enhancement on MRI=

A

DCIS or IDC

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19
Q

What are the five distributions of calcifications?

A 
segmental
linear
grouped
regional
scattered
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20
Q

cigar shaped w/ lucent center-

A

secretory calcs

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21
Q

calcs 10-20 years after menopause=

A

secretory calcs

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22
Q

massive eggshell calcs=

A

liponecrosis macrocystica

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23
Q

How is milk of calcium seen on biopsy?

A

polarized light for birefringence

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24
Q

4 ddx for amorphous calcs

A

fibrocystic change
sclerosing adenosis
columnar cell change
DCIS low grade

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25
Q

4 ddx coarse heterogeneous calcs

A

fibroadenoma
papilloma
fibrocystic change
DCIS low intermediate grade

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26
Q

4 ddx fine pleomorphic calcs

A

fibroadnoma
papilloma
fibrocystic change
DCIS

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27
Q

What is the puff of smoke sign in mammo

A

central calcs in mass

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28
Q

A ton of oil cysts=

A

steatocystoma multiplex

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29
Q

PASH f/u recommendation?

A

1 year

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30
Q

fibroadenoma characteristics on MRI?

A

T2 bright with type 1 enhancement

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31
Q

what IDC type is associated with radial scar?

A

tubular

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32
Q

What does ILC look like on US?

A

shadowing without a discrete mass

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33
Q

shrinking breast=

A

ILC

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34
Q

dark star ddx 4

A

lobular carcinoma, radial scar, surgical scar, IDC NOS

35
Q

What is breast pagets associated with?

A

high grade DCIS

36
Q

Radial scar is a/w what three things?

A

DCIS, IDC, tubular carcinoma

37
Q

What is the most common benign cause of nipple discharge in a postmenopausal woman?

A

ductal ectasia

38
Q

What is the most common benign cause of nipple discharge in a premenopausal woman?

A

fibrocystic change

39
Q

AD + calcs=

A

IDC and DCIS

40
Q

AD without calc=

A

ILC

41
Q

normal lymph node cortical thickness?

A

less than 2.3-3mm

42
Q

dense calcs in lymph node=

A

gold therapy

43
Q

snow storm node=

A

silicone infiltration or gel bleed

44
Q

What is diffuse glandular gynecomastia seen in?

A

men with estrogen therapy

45
Q

What is the second most common palpable mass in a man?

A

lipoma

46
Q

What is the most common type of male breast cancer?

A

IDC NOS

47
Q

step ladder on US

A

intracapsular rupture

48
Q

linguine sign on MRI

A

intracapsular rupture

49
Q

What is the local recurrence rate when treated with breast conserving therapy?

A

6-8%

50
Q

What is the peak time for breast cancer recurrence?

A

4 years

51
Q

Without radiation, what is rate of local recurence?

A

35%

52
Q

Benign calcs are seen when after treatment?

A

2 years (opposed to 4 for cancer recurrence)

53
Q

red plaques/skin nodules 6 years after radiation=

A

secondary angiosarcoma

54
Q

T1

A

<2cm

55
Q

T2

A

2-5 cm

56
Q

T3

A

> 5cm

57
Q

T4

A

skin involvement, chest wall fixation, inflammatory

PAGETS is NOT T4

58
Q

What are the five contraindications for breast conservation?

A 
inflammatory
large cancer size relative to breast
multicentric disease
prior radiation to same breast
contraindication to radiation treatment
59
Q

Risk of cancer in Type 1 curve

A

6%

60
Q

Risk of cancer in Type 2 curve

A

7-28%

61
Q

Risk of cancer in Type 3 Curve

A

29%+

62
Q

What two tumors are T2 bright?

A

colloid cancer or mucinous cancer

63
Q

If patient with known breast CA, how often contralateral cancer found by mammo?

A

0.1-2%

64
Q

If patient with known breast CA, how often contralateral cancer found by MRI?

A

3-5%

65
Q

At what radiation dose will child later need screening MRI?

A

20Gy

66
Q

At what age does child with high chest radiation get screening MRI?

A

age 25 or 8 years post exposure whichever is later

67
Q

What are the four features of Cowden Syndrome?

A

breast CAn, follicular thyroid cancer, endometrial cancer, lhermitte duclos

68
Q

QC localization and accuracy test performed

A

daily

69
Q

What is the required resolution of line pairs?

A

13 in anode cathode direction, 11 in left right direction

70
Q

What must be seen to pass image quality?

A

4 fibers, 3 microcalc clusters, 3 masses, acceptable artifacts

71
Q

What are the characteristics of the dose phantom?

A

4.2 cm thick, 50% glandularity, 3 mGy per image

72
Q

Typical patient phantom dose one view, two view?

A

2 mgy, 4 mgy

73
Q

Typical compressed breast is how thick and what percent glandular?

A

6cm, 15-20%

74
Q

processor QC

A

daily

75
Q

darkroom cleanliness

A

daily

76
Q

viewbox conditions

A

weekly

77
Q

phantom evaluation

A

weekly

78
Q

repeat analysis

A

quarterly

79
Q

compression test

A

semi annually

80
Q

darkroom fog

A

semi annually

81
Q

screen film contrast

A

semi annually

82
Q

How is flaring fixed on mri?

A

put pad between breast and coil

83
Q

How is heterogeneous fat satting fixed?

A

shimming

Rad (18 decks)

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