Metastasis to the ovary has been estimated occur in 6 to 27.8% of all
cancers. The wide variation resulting both from methodology and the sm
all, often microscopic size of these secondary tumors. Many are mucoce
llular tumors or Krukenberg's tumors (ovarian carcinoma mucocellular)
considered by some to include all ovarian metastases and by others to
be limited to metastasis of gastrointestinal or gastric cancer. The wo
rk presented in this issue by Le Bouedec et al. concentrates on a homo
geneous series of clinically diagnosed ovarian carcinoma muco- cellula
r secondary to breast cancer. Manifestations of ovarian metastasis, pe
lvic weight or ascitis, usually develop approximately 5 years after di
agnosis of localized breast cancer and occur with other metastatic loc
alizations in half the cases. Ovarian metastasis is particularly frequ
ent from invasive lobular breast cancer; the primary tumoral type was
invasive lobular carcinoma in 8 out to the 10 patients in the series r
eported here by Le Bouedec et al., while this type is found in only 8%
of breast cancers. This observation is further supported by data in t
he literature demonstrating the unusual propagation routes of these in
filtrating lobular cancers. The authors draw the reader's attention to
the short median survival after diagnosis, 18 months, emphasizing the
importance of careful follow-up after diagnosis and treatment of brea
st cancer.