Description
This very large tumour can be seen to be circumscribed and to show overall a nodular pattern as
can be seen when viewed from the side. The tumour appears to be encroaching upon although not
invading the nipple, and at 1 point on the skin surface there is a shallow ulcer approximately 1.5
cm long and 0.5 cm wide. This is presumably due to pressure interfering with the blood supply to
the skin in that area. The cut surface has a brownish colouration which is probably artifact, the
result of age. The cut surface shows a general whorled pattern with a number of cystic areas ranging
in size from less than 1 mm to 1 mm at the periphery which is some 4 x 1 cm. These cystic areas
are lined by epithelium and form the "adenomatous" part of the fibroadenoma. The whorled solid
areas are formed by proliferating fibrous tissue. This is a very old specimen, most of the lesions of
this nature seen today are no more than 2-3 cm in size.