This shows a thinwalled cyst with an ellipse of skin at 1 pole and barely recognisable breast tissue
at the other. Within the cyst is a sessile tumour just over 1 cm across. This is said to be a simple
papillary tumour. Whether it is the end result of a fibroadenoma or represents an intraduct
papilloma is not clear. The specimen is very old and there is no known history.