Download presentation
Published byEmory Hood Modified over 9 years ago
1
MAMMOGRAPHY LECTURE #2 rev 2014 Positioning & Anatomy
RADIOGRAPHIC IMAGING OF THE BREAST RTEC 255 -Week # 4 /5 D. Charman, M.Ed.,R.T.(R,M)
2
Mammograms don’t look fun but they can save a life!
3
Man – o - gram
4
A mammogram can find breast cancer when it is very small -- 2 to 3 years before you can feel it.
No screening tool is 100% effective. Good quality mammograms can find 85-90% of cancers Some cancers are not found until they reach this size A mammogram can find cancer when it is only this size
5
Do it for those you love…. And who love you
6
Routine Images - aka “screening mammo” (not screaming)
POSITIONING Routine Images - aka “screening mammo” (not screaming) CC - cranio caudad MLO – mediolateral oblique
8
MAX 25 PSI - how is this measured?
13
Compression Important:
Evens Density of Breast Reduces Motion AEC choice depends of size and composition of breast
14
CC
16
Marker? Which side is axilla?
20
MLO – RT BREAST
29
POSITIONING CC – CRANIOCAUDAD MLO – MEDIAL LATERAL OBLIQUE
“TRUE” LATERAL ETC
31
TRUE LATERAL
32
Magnification = increase OID
CONE-MAG
33
Anatomy of the Breast Vary in shape & size
Cone shaped with the post surface (base) overlying the pectoralis & serratus muscles Axillaries tail extends from lat. base of the breasts to axillaries fossa Tapers ant. from the base ending in nipple, surrounded by areola
34
Female Breast Consists of 15-20 lobes Divide into several lobules
Lobules contain acini, draining ducts and interlobular connective tissue. By teenage years each breast contains hundreds of lobules
35
See Mammo Study Guide TDLU ? COOPER’S Ligaments
36
Breast profile: A ducts B lobules C dilated section of duct to hold milk D nipple E fat F pectoralis major muscle G chest wall/rib cage Enlargement: A normal duct cells B basement membrane C lumen (center of duct)
37
Lymph node areas adjacent to breast area.
A pectoralis major muscle B axillary lymph nodes: levels C axillary lymph nodes: levels D axillary lymph nodes: levels E supraclavicular lymph nodes F internal mammary lymph nodes
38
Lymph Nodes Lymphatic vessels of the breast drain laterally and medially Laterally into the axillary lymph nodes (C & D) 75 % drain toward axilla Medially into the mammary lymph nodes 25% toward mammary chain (F) A pectoralis major muscle B axillary lymph nodes: levels C axillary lymph nodes: levels D axillary lymph nodes: levels E supraclavicular lymph nodes F internal mammary lymph nodes
39
Breast Scintomotography Isotope matches tumor to node involvement
More on Breast Pathology & Procedures next lecture…..
41
Quadrants of the breast
42
TYPES OF BREAST TISSUE GLANDULAR DUCTS LOBES LOBULES TDLU STROMAL
MOSTLY SEEN UPPER OUTER QUADRANT STROMAL FATTY TISSUE CONNECTIVE TISSUE (COOPER’S LIGAMENTS – SUSPENSATORY LIGAMENTS
43
3 Tissue Types
46
Breast Changes with Age
Breast Classifications Breast Changes with Age
47
Fibro-glandular Breast
Dense with very little fat Females years of age Or 30 years or older without children Pregnant or lactating
48
Fibro-fatty Breast Fibro-fatty Average density
50% fat & 50% fibro-glandular Women years of age Or women with 3 or more children
49
Fatty Breast Fatty Minimal density
Women 50 and older (postmenopausal), men and children
50
THE MALE BREAST Male Mammography and Cancer
51
Male Breast Cancer Statistics:
According to the American Cancer Society, about 0.22 percent of men’s cancer deaths are from breast cancer. This disease is 100 times more common in women than it is in men. Thanks to greater awareness and better treatments, the survival rates for both men and women are on the rise.
52
Gynecomastia Benign excessive development of male mammary gland
Occurs in 40% of male cancer pt’s Survival rates with treatment are 97% for 5 years
53
Gynecomastia: Prominent Male Breasts
Most Common Causes : Puberty (hormonal growth and changes during adolescence) Estrogen exposure (female hormone present in the body and the environment) Androgen exposure (body-building hormones) Marijuana use Medication side effects (older men) One symptom of Klinefelter's syndrome, a condition in which a male has an extra X chromosome
54
Gynecomastia is a benign male breast (non-cancerous) condition
Some men who have prominent breasts, or uneven breasts, often feel some embarrassment about their body image. This condition can also cause emotional conflict over sexual identity.
55
Position? Best Seen ?
56
male breast
57
Male Mammography 1300 men get breast cancer per year 1/3 die
Most are 60 years or older Nearly all are primary tumors Symptoms include: Nipple retraction Crusting Discharge Ulceration
58
male mastectomy
59
Difficulty with IMPLANTS
THE AUGMENTED BREAST Difficulty with IMPLANTS
60
Breast Implants Is it worth the risk?
61
Complication with Breast Augmentation
Mammography has a 80-90% true positive rate for detecting breast cancer in those women without implants Decreases to 60% with implants Because 85% of breast tissue is obscured More images are needed than the standard two projections There is a risk of rupturing the implant Loss of sensation from surgical scars
62
Elkland Method for Imaging with Breast Implants
64
“PUSH BACK” TECHNIQUE
67
Xero mammography (early years
68
OTHER CHALLENGES TO MAMMOGRAPHY
69
Risk Factors for Breast Cancer
Age: the older you are, the higher the risk Family history: mother, sister with breast cancer Genetics: presence of BRCA1 or BRCA2 genes Breast architecture; dense breast tissue Menstruation: onset before age 12 Menopause: onset after age 55 Prolonged use of estrogen Late age at birth of first child or no children Education: risk increases with higher education Socioeconomics: risk increases with higher status
Similar presentations
© 2024 SlidePlayer.com. Inc.
All rights reserved.