An unusual papillary tumour of the vulva is described which exhibits a
pocrine features, as currently defined. The tumour has areas which res
emble sclerosing adenosis of the breast and also exhibits mucinous and
sebaceous differentiation,A review of the literature reveals a small
number of similar lesions of the vulva. Many of these have been classi
fied as lesions of ectopic breast tissue. In the absence of associated
normal breast lobules it is impossible to differentiate these from le
sions arising from apocrine sweat glands. This papillary apocrine fibr
oadenoma may represent a distinct cutaneous tumour occurring in this s
ite.