(Idiopathic) Granulomatous inflammation
General Information:
Most granulomatous inflammatory lesions of the breast are idiopathic.
Often clinically presents as a mass lesion in young females with a history of recent pregnancy.
Histologic findings:
Granulomatous inflammation admixed with neutrophils
A few granulomas show central neutrophilic infiltrate (microabscess)
Caseous necrosis is NOT seen
DDx: Must exclude other causes of granulomatous inflammation (TB, sarcoid, fungal infection etc)
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