Diagnosis, biology and epidemiology of oligometastatic breast cancer.

Breast

Institut Claudius Regaud (ICR), Institut Universitaire du Cancer de Toulouse-Oncopole (IUCT-O), Département d'Oncologie Médicale, Université de Toulouse, UPS, 1 av. Irène Joliot Curie, 31059, Toulouse Cedex 9, France.

Published: October 2021

Does oligometastatic breast cancer (OMBC) deserve a dedicated treatment? Although some authors recommend multidisciplinary management of OMBC with a curative intent, there is no evidence proving this strategy beneficial in the absence of a randomized trial. The existing literature sheds little light on OMBC. Incidence is unknown; data available are either obsolete or biased; there is no consensus on the definition of OMBC and metastatic sites, nor on necessary imaging techniques. However, certain proposals merit consideration. Knowledge of eventual specific OMBC biological characteristics is limited to circulating tumor cell (CTC) counts. Given the data available for other cancers, studies on microRNAs (miRNAs), circulating tumor DNA (ctDNA) and genomic alterations should be developed Finally, safe and effective therapies do exist, but results of randomized trials will not be available for many years. Prospective observational cohort studies need to be implemented.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8441842PMC
http://dx.doi.org/10.1016/j.breast.2021.06.010DOI Listing

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