Ch23-Breast

Ch23-Breast - BREAST BREAST LYMPHATIC DRAINAGE AXILLARY...

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BREAST BREAST
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LYMPHATIC DRAINAGE AXILLARY (MOSTLY) INTERNAL MAMMARY SUPRACLAVICULAR
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HISTOLOGY LOBE : (10 in whole breast) LOBULE : (many per lobe) ACINUS /I, aka ALVEOLUS/I: (many per lobule) DUCT (S): INTRA- or INTER- LOB(UL)AR, leading to the lactiferous ducts in the nipple
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L O B E
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LOBULE
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One single ACINUS (alveolus) Epithelial cells MYO -epithelial cells
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THREE NORMAL PHASES ACTIVE : about 50-50 Gland/Stroma ratio LACTATING : Mostly Glands (like thyroid!!!), >>>50/50 ATROPHIC : mostly stroma, <<<50/50
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QUIZ ???
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The most important thing to understand breast pathology is to get a solid IMAGE of the “NORMAL” breast lobule---- ACINI, STROMA, BOUNDARIES
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BREAST PATHOLOGY DEVELOPMENTAL: DEGENERATION: INFLAMMATION: NEOPLASM:
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DEVELOPMENTAL MILKLINE REMNANTS ACCESSORY (axillary) BREAST TISSUE NIPPLE INVERSION MACROMASTIA
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ACCESSORY (axillary) BREAST TISSUE
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1) CONGENITAL 2) ACQUIRED: CARCINOMA 3) ACQUIRED: PIERCING
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DEGENERATION ATROPHY
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INFLAMMATION ACUTE , staph most common PERIDUCTAL DUCT-ECTASIA FAT NECROSIS , usually trauma LYMPHOCYTIC , i.e., diabetic GRANULOMATOUS , sarcoid, TB, etc., but mostly idiopathic
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ACUTE MASTITIS
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INFLAMMATION? Peau d’orange
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This note was uploaded on 01/25/2012 for the course PDBIO 305 taught by Professor Woods,a during the Fall '08 term at BYU.

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Ch23-Breast - BREAST BREAST LYMPHATIC DRAINAGE AXILLARY...

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