Amy Winehouse, currently in hospital after being diagnosed with emphysema, was found with a mystery lump on her chest after a number of routine tests her father Mitch has revealed.

The Grammy winning singer has been at London’s The Clinic since last Monday after collapsing at her Camden home, and since then has been undergoing an extensive check-up.

Her cabbie father explained to the Sunday Mirror: "After lots of tests they found a lump in Amy's chest. A scan has shown it's not cancerous and there are no traces of cancer in her blood. But they might need to double check.

"There is a chance she might need a biopsy. If they need to cut the lump out then that will mean a massive and painful operation and a lot of recuperation.

"When they told me she had a lump, I was very, very worried. At times Amy seems nervous about it but she doesn't panic until something's 100 per cent."