Breast Pathoma Flashcards

1
Q

Breast is a modified ________

A

Sweat gland

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2
Q

Functional unit of the breast

A

Terminal duct=lobular unit

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3
Q

Lobules and ducts are lined by

A

Two layers of epit.

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4
Q

The two layers of epit. are:

A

Lumina, cell layer

Myoepithelial cell layer

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5
Q

Highest density of breast tissue is found in _____

A

Upper quadrent of the breast

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6
Q

Milk production outside og lactation is also called

A

Galactorrhea

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7
Q

Is galactorrhea a symptom of breast cancer?

A

No

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8
Q

What can cause galactorrhea?

A

Nipple stimulation
Prolactinoma of Ant. Pituitary
Drugs

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9
Q

Acute mastitis usually caused by

A

Staph aureus

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10
Q

Acute mastitis usually occurs during

A

Breast feeding period

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11
Q

Acute mastitis may progress to

A

Abscess formation

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12
Q

Inflammation of the subareolar duct is also called

A

Periductal mastitis

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13
Q

Periductal mastitis is commonly seen in

A

Smokers

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14
Q

What smoke does to the columnar epit. cells?

A

Vit. A deficiency -> Squamous epit. cells -> Keratin plug -> Inflammation behind the duct

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15
Q

Periductal mastitis presents as

A

Subareolar mass

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16
Q

Granulation tissue contains ______ whcih will contract and pull the nipple inwards

A

Myofibroblasts

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17
Q

Which disorder will present as green-brown nipple discharege?

A

Mammary duct ectasia

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18
Q

Inflammation with dilation of the subareolar duct is also called

A

Mammary duct ectasia

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19
Q

Mammary duct ectasia classicaly arises in which population?

A

Postmenopausal women

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20
Q

What is seen on biopsy of Mammary duct ectasia?

A

Chronic inflammation and plasma cells

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21
Q

Fat necrosis of the breat is usually related to

A

Trauma

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22
Q

Why do we see calcification in fat necrosis of the breast?

A

Due to saponification

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23
Q

Biopsy of Fat necrosis of the breast will show

A

Calcification

Giant cells

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24
Q

What is the most common change in premenopausal women breast?

A

Fibrocystic change

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25
Fibrocystic change present as
Lumpy breast
26
Gross patholgy of the Fibrocystic change
Blue-dome appearance
27
Fibrocystic change crries/Dont carry risk of cancer
Doesnt carry
28
Apocrine metaplasis does/doesnt increase the risk for cancer
Doesnt
29
Ductal hyperplasia does/doesnt increase the risk for cancer
Does
30
Papillary growth usually into a large duct is defined as
Intraductal papilloma
31
Intraductal papilloma classically presents as
Bloody nipple discharge in premenopausal women
32
Papillary carcinoma is characterized by papillary projection lined by epit. cells without ______
Underlying myoepithelial cells
33
Tumpr of fibrous tissue and glands=
Fibroadenoma
34
What is the most common benign lesion of the breast
Fibroadenoma
35
Fibroadenoma is ____ sensitive
Estrogen
36
Fibroadenoma presents as
Well-circumscribed, mobile marble-like mass
37
Fibroadenoma like tumor with overgrowth of the fibrous tissue=
Phyllodes tumor
38
Phyllodes tumor classically looks like _____ on biopsy
Leaf like projection
39
Which one can be malignant? | Phyllodes tumor/Fibroadenoma
Phyllodes tumor
40
What is the most common cancer in women by incidece?
Breast cancer
41
Breast cancer is __ most common cause of cancer mortality
2nd
42
If DCIS goes out to the skin of the nipple it is called-
Paget disease of the nipple
43
If DCIS invade the BM we call it
Invasive DCIS
44
What is the appearance of DCIS
Detected as calcification on mammography
45
Which DCIS type has high grade cells with necrosis and dysrophic calcification in center of duct?
Comedo type
46
Special subtypes of invasive ductal carcinoma
- Tubular carcinoma - Mucinous carcinoma - Inflammatory carcinoma - Medullary carcinoma
47
Medullary carcinoma is characterized by
Large, high grade cells growing in sheets with associated lymphocytes and plasma cells
48
Medullary carcinoma has an increased incidence in which population
BRCA1 carriers
49
TNM- T?
Tumor size
50
TNM- N?
Local lymph Node metastasis
51
TNM- M?
Distant Metastasis
52
What is the most usefull factor in the prognosis of breast cancer?
Spread to axillary lymph nodes
53
Hereditary breast cancer represents __ of breast cancer cases
10%
54
BRCA1 is associated with
Breast and ovarian carcinoma
55
BRCA2 is associated with
Breast carcinoma in males
56
Removal of both breast=
Bilateral mastectomy
57
Do woman whe undergo Bilateral mastectomy in case of BRCA1 mutation eliminate their chance to cancer?
No | Breast tissue sometimes extends into the axilla or asubcutaneous tissue in the chest wall
58
Where is the highest density of breast tissue in males?
Underneath the nipple
59
Male breast cancer most commom histological subtype
Invasive ductal carcinoma
60
Male breast cancer is associated with
BRCA2 mutation | Klinefelter syndrome