breast lesions Flashcards

1
Q

types of cysts

A
  1. simple
  2. complex
  3. duct ectasia (enlarged)
  4. abscess
  5. solid benign lesion
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2
Q

most common solid benign lesion

A

fibroadenoma

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3
Q

usually in premenopausal state due to estrogen level fluctuation

A

simple cyst

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4
Q

• Smooth walls
• Anechoic
• Posterior enhancement
- often compressible

A

simple cyst

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5
Q
  • Wall thickening or irregularities
  • Septations
  • Internal echoes
A

complicated cyst

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6
Q

characteristics of benign solid lesions of breast

A
  • smooth margin
  • round or oval
  • wider than tall**
  • mobile
  • compressible
  • avascular
  • less than 3 gentle lobulations
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7
Q

age for peak incidence of Fibroadenoma

A

25-40 yes

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8
Q

cause of fibroademona

A

increased estrogen

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9
Q

common location of fibroadenoma

A

UOQ

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10
Q

round/ oval, thin echogenic capsule

A

characteristics of fibroademona

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11
Q

age for peak incidence of hamartoma

A

> 35

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12
Q

cause of hamartoma

A

proliferation of fibrous, glandular and fatty tissue

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13
Q

treatment of fibroademona

A

minimal / no malignancy potential

-biopsy

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14
Q

soft and compressible, hyper or hypoechoic

A

characteristic of hamartoma

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15
Q

age for peak incidence of fat necrosis

A

older women bc fat replaces gladular tissue with age

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16
Q

cause of fat necrosis

A

trauma, surgery, radiation or cancer of breast

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17
Q

irregular complex mass with low echos (oil cyst)

A

characteristic of fat necrosis

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18
Q

age for peak incidence of cytosarcoma phyllodes

A

> 45 before menopause

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19
Q

cause of cystosarcoma phyllodes

A

fibroadenoma but fast growing (change in estrogen levels)

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20
Q

solid with multiple cystic spaces and heterogeneous texture

A

characteristic of cytosarcoma phyllodes

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21
Q

T/F: phyllodes tumor may undergo malignant transformation

A

TRUE

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22
Q

age for peak incidence of mastitis

A

lactating women

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23
Q

cause of mastitis

A

trauma, obstructed ducts, infection

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24
Q

dilated ducts, hyper vascular glandular parenchyma, inflammed echogenic fat

A

characteristic of mastitis

25
Q

treatment option for mastitis

A

antibiotics

26
Q

presents with swelling, pain, and redness of skin overlaying breast tissue

A

abscess

27
Q

5-10% of what benign breast lesion can develop abscess

A

mastitis

28
Q

single or multiloculated hypoechoic area with posterior enhancement, no internal vascularity

A

abscess

29
Q

treatment for abscess

A

incision/ drainage & antibiotics

30
Q

characteristic of malignant lesion

A
  • hypoechoic
  • irregular margin
  • taller than wide**
  • > 3 lobulations
  • shadowing
  • hypervascularity
  • pull on cooper’s lig
  • duct extension or branching
31
Q

malignant breast lesion with epithelium origin

A

carcinoma

32
Q

malignant breast lesion with CT origin

A

sarcoma

33
Q

what origin lesion grows faster

A

sarcoma

34
Q

modes of spread in breast cancer

A
  1. local invasion via LYMPHATICS to ipsilateral or contalateral lymph nodes
  2. distal invasion via blood to different organs (bones, lungs, liver/ brain)
35
Q

genetic factors that increase risk of BC

A

BRCA1 and BRCA2 mutation

36
Q

what type of carcinoma has a higher risk of being invasive (name & %)

A

ductal (75-80%)

37
Q

cause of invasive ductal BC

A

-more fibrous tissue

38
Q

characteristics of invasive ductal BC

A
  • skin dimpling

- nipple retraction

39
Q

2nd most common BC (name & %)

A

invasive lobular 10-15%

40
Q

T/F invasive lobar BC is commonly found in older women

A

TRUE

41
Q

type of BC difficult to detect on imaging

A

Invasive lobular

42
Q

rare type of BC (name & %)

A

medullary carcinoma <5%

43
Q

characteristic of invasive lobular BC

A

remain localized longer, bilateral, begin in lobule extend to fatty tissue

44
Q

round/oval with lobulations, dense cellular with central necrosis, grow fast and spread by lymphatics

A

characteristic of medullary carcinoma

45
Q

relatively rare BC (name & %)

A

colloid or mucinous or gelatinous BC

-3%

46
Q

slow growing, in older women, resemble fibroademona (smooth, posterior enhancement) with vascularity

A

colloid or mucinous or gelatinous

47
Q

BC with low rate of recurrence, slow growth, small (<1cm) in women 40-50yrs, arise from TDLU

A

tubular

48
Q

rare 1.5-2.5% BC arise from ducts and spread to epidermal region of nipple

A

paget’s disease (in 6th decade)

49
Q

sonographically heterogeneous sub areolar mass with irregular margin,

A

paget’s disease

50
Q

BC gives “orange peel” appearance

A

inflammatory carcinoma

51
Q

1-4% in 4th-5th decade. mimmics mastitis

A

inflammatory carcinoma

52
Q

treatment for inflammatory carcinoma starts with ___

A

chemo / radiation

53
Q

invasive ductal carcinoma - tumors found dilated in lymphatic channels

A

inflammatory carcinoma

54
Q

therapeutic aspiration of __, ___, or ___ guided by ultrasound

A
  1. cyst
  2. hematoma
  3. abscess
55
Q

extra capsular rupture of implant gives ___ appearance

A

snow storm

56
Q

intra capsular rupture of implant gives ___ appearance

A

stair-case / ladder

57
Q

standardized way to report risk of breast cancer, numerical score 0-6

A

BI-RADS (breast imaging reporting and data system)

58
Q

BI-RADS score of 0

A

negative - nothing found

59
Q

BI-RADS score of 6

A

known biopsy proven malignancy