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Gynaecomastia





Male breast - gynaecomastia. Note blind-ending ducts, absence of lobules and periductal stromal oedema
'Mouse over' - for closer view - note mild epithelial hyperplasia in ducts


Male breast, gynaecomastia


Gynaecomastia - example 2
Gynaecomastia at scanning power - note absence of lobules and periductal oedema Gynaecomastia at medium power - note absence of lobules and periductal oedema
Gynaecomastia at high power - note absence of lobules and periductal oedema Gynaecomastia at high power - the ductal epithelium shows reactive atypia and helps to explain the atypia sometimes seen on FNA


For a recent review of the clinical aspects and pathophysiology of gynaecomastia readers may appreciate:

Braunstein GD. Gynecomastia. NEJM 2007; Vol 357: 1229-1237.




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