The impact of lobular histology on breast cancer treatment.
Lobular neoplasias are a distinct clinical entity with subtle differences in locoregional treatment considerations when compared with ductal cancers. Although overall surgical recommendations do not differ significantly between breast cancers of lobular versus ductal histology, there are important distinctions that should be considered as part of patient care, particularly with respect to recommendations regarding management of the contralateral breast and genetic testing. Because the lobular subtype of breast cancer is underrepresented in studies of molecular prognostic markers, the results of such testing must be interpreted with caution until they are validated specifically in patients with lobular histology. Until then, the mainstay of sound treatment decision-making remains a thorough clinical understanding of the disease and of the factors that can have an impact on outcome.
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