Breast cancer

Breast cancer generally presents as a lump in the breast. It should be diagnosed by a “triple test” of investigation:

  • Clinical examination

  • Mammogram

  • Biopsy (where a pathologist reviews of cells under a microscope)

If the radiolgy or biopsy suggest malignancy, the woman should proceed to surgery within 2 weeks of diagnosis.


Delays in Diagnosis

If breast cancer is diagnosed early the chance of cure is normally good. Treatment includes surgery, radiotherapy, chemotherapy and hormonal therapy. To succed in a medical negligence claim you need to prove that the delay affected the outcome. Usually this means you need to prove that during the delay the cancer progressed to a more advanced stage. Therefore, delays of a few months are unlikely to be enough. However if cancer is left, it is likely to grow and can spread to other parts of the body. Mistakes in diagnosing breast cancer can therefore be very serious.

Medical negligence claims may be brought for:

  • Failure to carry out adequate examination

  • Failure to advise a patient to return if a suspicious lump changes or grows

  • Mistakes by pathologists in reviewing the tissue samples

  • Mistakes by radiologists in reviewing the mammogram

  • Mistaken diagnosis of breast cancer where a lump is actually benign resulting in unnecessary surgery (This may result in cosmetic deformity, lymphoedema and anxiety)


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Contact us

For further information or if you believe you have a cancer misdiagnosis claim, please contact our medical negligence team. All enquiries are completely free of charge and we will investigate all funding options for you including legal aid and no win, no fee.

  1. You can speak to any member of our Medical Negligence team on freephone 0800 358 3848

  2. e-Mail us at or,

  3. Complete our short enquiry form.

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