The specimen shows a portion of breast which includes part of the nipple. In the substance of the
fatty breast tissue there is a circumscribed area some 3 x 2 cm. where the tissue is light tan in colour
and trabeculated. Between the tumour and the nipple there is a haemorrhagic area of irregular
outline which is presumably related to the biopsy procedure. The histology of the lesion is that of
a papillary adenocarcinoma; the lesion shown here represented one edge of a 4 cm. mass. The
sections also showed a widespread intraduct in situ malignancy.