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The team picked three samples: a muscle cancer called rhabdomyosarcoma, a blood-vessel tumour called cellular capillary haemangioma and a lymphoma.

"She had a hepatic haemangioma in her liver," he wrote.

Mark Boylan, who has a cystic hygroma and haemangioma which causes facial growths, added that as a "genuine Top Gear fan" he was "gutted presenters felt the need to stoop to such a low level".