Uncommon breast malignancies: presentation pattern, prognostic issue and treatment outcome in an Italian single institution experience.

Aims And Background: Often neglected by large clinical trials, patients with uncommon breast malignancies have been rarely analyzed in large series.

Patients And Methods: Of 2,052 patients diagnosed with breast cancer and followed in our Institution from January 1985 to December 2009, we retrospectively collected data on those with uncommon histotypes, with the aim of investigating their presentation characteristics and treatment outcome.

Results: Rare histotypes were identified in 146 patients (7.