Rachel Avon's pregnancy caused doctors to spot a cancerous tumour.
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When she was six months pregnant with her daughter, her doctor scheduled her for an appendectomy, only to discover a tumour.
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Her medical team chose not to tell her about the tumour until after she had given birth.
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Avon now has annual scans to make sure the cancer hasn’t returned.
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Avon has run the London Marathon to raise money for cancer research.
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