A case of retinoblastoma found in a one-year old’s birthday picture:

When Jasmin Nethercoat had her photograph taken on her first birthday, little did her parents realise the picture would save her sight.

Her mother Vicki had the photograph developed – only to notice a strange spot reflected in her daughter’s left eye.

After seeing an optician, a GP and a specialist, the family was sent to Great Ormond Street Hospital where doctors found cancerous tumours in both of Jasmin’s eyes.

There was a risk that she would lose the sight in her left eye to the cancer, called retinoblastoma, and so within two weeks she had begun chemotherapy.

Update:
Link fixed.