CH 21 - BREAST Flashcards
WHERE DOES THE BREAST EXTEND INTO?
AXILLA (TAIL OF SPENCE)
WHAT IS THE BREAST COMPOSED OF?
FIBROUS, GLANDULAR, ADIPOSE
WHERE DOES THE MAMMARY MILK LINE EXTEND FROM?
AXILLA TO PUBIC SYM
WHAT ARE THE LAYERS OF THE BREAST?
SUBCUTANEOUS
MAMMARY/GLANDULAR LAYER
RETROMAMMARY
THIS IS THE THIN, FATTY LAYER SURROUNDED BY CONNECTIVE TISSUE.
SUBCUTANEOUS LAYER
THIS CONTAINS 15-20 FCTNL LOBES FROM THE NIPPLE TO TERMINAL DUCTAL LOBULAR UNITS
MAMMARY/GLANDULAR LAYER
THIS DIVIDES THE BREAST INTO LOBES & LOBULES & SUPPORT SHAPE & STRUCTURE.
SUSPENSORY (COOPER) LIGAMENT
THIS IS BETWEEN THE MAMMARY LAYER & PECTORALIS MAJOR MUSCLE.
RETROMAMMARY LAYER
WITH U/S THE FATTY TISSUE APPEARS ______, AND THE DUCTS, GLANDS, AND SUPPORTING LIG APPEAR _____.
HYPOECHOIC
ECHOGENIC
WHERE DO MOST TUMORS OF THE BREAST ORIGINATE?
WITHIN THE DUCTS
WHAT REGION OF THE BREAST ARE MOST TUMORS FOUND?
UPPER OUTER QUADRANT DUE TO A HIGH CONCENTRATION OF LOBES.
HOW DOES DUCTS, PECTORALIS MUSCLE, RIBS, AND AXILL VESSELS APPEAR WITH MAMMO?
WHITE
WHAT IS THE PARENCHYMAL PATTERN OF A YOUNG WOMAN?
- INCREASED FIBROUS TISSUE
- DENSE ECHOGENIC PATTERN
- DIFFICULT TO EVAL WITH MAMMO
WHAT IS THE PARENCHYMAL PATTERN OF A PREGNANT/LACTATING WOMAN?
- PROLIFERATING GLANDULAR TISSUE
- INCREASED DENSITY & VOLUME
- DECREASED ECHOGENICITY
WHAT IS THE PARENCHYMAL PATTERN WITH OLDER WOMEN?
- GLANDULAR CELL DEATH
- TISSUE REPLACED BY FAT
- ALL LAYERS HYPOECHOIC
- IS MOST DIFFICULT TO EVAL WITH U/S BUT EASY WITH MAMMO
WHERE DOES LYMPHATIC DRAINAGE FLOW?
TO THE AXILLARY LYMPH NODES
A CONDITION IN MEN WHERE THE DUCTAL ELEMENTS HYPERTROPHY IS CALLED _______.
GYNECOMASTIA
WHAT CAN LEAD TO BREAST CANCER IN MEN?
KLINEFELTERS SYNDROM MALE TO FEMALE TRANSEXUAL CHEST WALL IRRADATION ORCHITIS OR TESTICULAR TUMOR LIVER DISEASE GENES
AT WHAT AGE SHOULD SELF EXAMS, CLINICAL EXAMS, AND SCREENING BEGIN?
SELF EXAMS - STARTING AT 20
CLINICAL EXAMS - AGES 20 - 39 EVERY 3 YEARS
AT 40 EVERY YEAR
SCREENING - AT 40
IS U/S USED AS A SCREENING TEST?
NO
WHAT IS BREAST U/S USEFUL FOR?
DENSE BREAST
EVAL PALPABLE MASSES NOT SEEN WITH MAMMO
IMAGE THE DEEP JUXTATHORACIC
WHAT IS BI-RADS?
BREAST IMAGING REPORTING AND DATA SYSTEM
- A SYSTEM THAT WAS DEVELOPED BY AMERICAN COLLEGE OF RADIOLOGY AS AN ASSESSMENT OF OUTCOME (RATING SYSTEM)
WHAT ARE SOME INDICATIONS FOR BREAST U/S RATHER THAN MAMMO?
PALPABLE BREAST LUMP DENSE BREAST AUGMENTATION PREGNANT OR LACTATING DIFFICULT OR COMPROMISED MAMMO
WHAT DOES THE STEP LADDER OR LINUINE SIGN INDICATE?
RUPTURED AUGMENTATION
