Surgical Pathology Criteria

Mammary Duct Ectasia

Differential Diagnosis

Granulomatous Lobular Mastitis Mammary Duct Ectasia
Centered on lobules Centered on ducts
Granulomatous inflammation May have giant cells but usually lacks formed granulomas
Nearly all cases postpartum May occur without associated pregnancy

 

Puerperal Mastitis Mammary Duct Ectasia
Postpartum by definition May occur without associated pregnancy

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