Ductal carcinoma in situ
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Moderately fibroglandular breast parenchyma.
In the upper outer quadrant of the right breast there is a discrete region of architectural distortion (5cm diameter) with multiple, scattered pleomorphic micro-calcifications visible. This corresponds to the clinical palpable mass. Axillary nodes are noted on the mammogram, but have a benign appearance.
No discrete mass could be demonstrated on ultrasound.
The left breast is unremarkable.
Pathological right axillary adenopathy with microcalcifications.
The skin contours and nipple profiles are smooth.
This is an example of a biopsy proven DCIS.