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20.11.07
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Acute Mastitits: This occurs during nursing as cracks begin to appear in the nipples. This allows Staph + Strep to invade --> acute inflammation --> breast abscess.
Fat Necrosis: Occurs 2nd to trauma
Macroscopy: irregular hard mass of orange/brown colour (haemoglobin derived pigments). Microscopy: central necrotic fat surrounded by lipid laden macrophages and neutrophilic infiltration. Later on: fibrovascular changes wall it off. Later on: fibrosis associated with foamy macrophages laden with haemosiderin.
Breast abscess: Results from acute mastitis or rupture of a duct.
Microscopy: central cavity filled with neutrophilic debris surrounded by inflamed tissue --> eventually fibrosis occurs.
Category:
Pathology Notes
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