Breast cancer changes with spread

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Nearly 40pc of breast cancer tumours change form when they spread, a UK study shows, reports BBC.
The researchers say this could mean that patients require changes to their treatment regime.
They analysed 211 tumours which had spread to the lymph nodes in the armpit - the place where breast cancer tends to migrate first.
The study, by Breakthrough Breast Cancer scientists in Edinburgh, appears in Annals of Oncology.
Breast cancer is a complex disease with many different types which can be treated in different ways.
Breast cancer spreads to the lymph nodes in about 40% of the 46,000 women diagnosed with breast cancer in the UK each year.
Cancer cells which spread in this way are often more difficult to treat than those in the breast - so it is vital that women receive the most appropriate treatment.
This suggests there is a need to test which type of disease a woman has in the lymph nodes, because it could radically alter the course of treatment she receives.