The 37-year-old supermodel Naomi Campbell has been hospitalised following emergency surgery in Sao Paulo, according to her publicist.
Jeff Raymond, Campbell's publicist, said in a statement: "Naomi Campbell was admitted to the hospital last night to have a small cyst removed."
He added: "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."
Campbell underwent successful emergency abdominal surgery and gynaecologist Jose Aristodemo Pinotti told the Brazilian Agencia Estado news service: "I cannot reveal what Naomi had, nor how serious her condition was, but I can say I operated on her yesterday and that she is completely cured."
He described the procedure as a laparoscopy, in which doctors use a thin, lighted scope to view internal organs.
The hospital said Campbell was admitted Sunday night and added that: "the patient and her advisers have determined that the hospital's medical staff will not issue any formal or informal information on her medical condition."
The hospital said David Uip, one of Brazil's leading experts in the treatment of infectious diseases, was also caring for Campbell.
