CTC clusters cause metastasis

[News]

Circulating tumor cell (CTC) clusters - clumps of from 2 to 50 tumor cells that break off a primary tumor and are carried through the bloodstream - appear to be much more likely to cause metastasis than are single CTCs, according to a study from investigators at the Massachusetts General Hospital Cancer Center.

More... (http://www.news-medical.net/news/20140829/CTC-clusters-cause-metastasis.aspx)