Naomi Campbell had a cyst removed in an emergency operation

Naomi Campbell had a cyst removed in an emergency operation - but it was found to be benign, according to reports.

Doctors who conducted the four-hour operation in Brazil have reportedly said their tests showed there was no sign of cancer. They have also said she should be leaving the hospital in around 10 days, according to local press.

It has emerged that the mystery procedure was to remove a cyst. But gynecologist JosÎ Aristodemo Pinotti said: "I can guarantee it is not a case of cancer because a pathologist followed the operation and conducted all the relevant exams."

He added: "Any possibility of malignity has been removed. I believe she will be completely cured."

The supermodel is said to be on a liquid diet as she recovers from the procedure and is already well enough to be walking in her room at the Sirio Libanes Hospital in Sao Paulo.

Dr Pinotti said he could allow her to leave hospital by Thursday, but it will depend on her progress and the decision is down to a colleague, infection specialist David Uip.

According to the Folha de Sao Paulo newspaper, she will remain in hospital for another 10 days.

Campbell had arrived at the hospital by helicopter on Sunday night, after flying in from London. The operation took place Monday night. "Following the successful procedure, she is now resting and is looking forward to getting back to work. She would like to thank the doctors who have kindly looked after her," her publicist, Jeff Raymond, said in a statement Tuesday

It is unclear where the cyst was located, but doctors have confirmed a laparoscopy took place - which is used for procedures in the stomach and pelvis.

By Matheus Sanchez, Feb 27 2008 © Copyright 2008 - Showbiz Spy