mammary duct ectasia: benign dilatation of the collecting ducts of the mammary gland, with inspissation of gland secretion and inflammatory changes in the tissues, usually during or after menopause.
http://medical-dictionary.thefreedictionary.com/mammary duct...
Mammary Duct Ectasia

This is a benign breast disease that can mimic invasive carcinoma clinically.
http://www.patient.co.uk/showdoc/40026066/

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Note added at 14 minute (2008-07-20 14:25:18 GMT)
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Dacă vrei să menţii formatul original al termenului, aş zice "dilated ducts"
(ectazie înseamnă dilataţie)
Denumirea medicală consacrată este totuşi "duct ectasia"
http://www.breastdiseases.com/slides/ben28.htm

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Note added at 54 minute (2008-07-20 15:05:00 GMT)
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Evident :-)
M-am învârtit atâta în jurul subiectului că am pierdut din vedere evidenţa...
Iată un exemplu:
Small ectatic ducts lined by atypical ductal cells with apocrine snouts occasionally have been observed in association with tubular carcinoma;
http://www.ncbi.nlm.nih.gov/pubmed/9128269