EN
Breast cancer (BC) is a heterogeneous disease
that encompasses several distinct entities with remarkably
different characteristics. Histological type is one of
important BC characteristics. Histological type is associated
with differences in epidemiology, diagnostic issues,
clinical course, prognosis. When we talk about BC, ductal
and lobular carcinoma is usually what we have in mind.
However, the other types that comprise less than 10% of
BC are also very important. The rarity of many of these
neoplasms does not allow large or randomized studies
to define the optimal treatment. Many of the descriptions
are from case reports and small series. The aim of this retrospective
study was to analyze the data on rare breast
cancers, to describe their main characteristics, and to
calculate survival rates. We believe that the experience of
our institution will contribute to the available data about
these rare breast cancers and help in better understanding
of this subgroup.