A 300 pound tumor from an unnamed 34-year-old woman’s abdomen was removed via a 6 hour surgery in Stanford Hospital, Palo Alto, California on October 1991. It was the world’s biggest tumor removed from a human body.
During operation, the woman had to lay on her back because if she lay flat the tumor would crush her abdomen. Doctor had to remove it in one piece because of it being complex. Six hours later, the tumor was successfully remove and later found out that it was benign.
The tumor was a multicystic mass on the right ovary of the woman. The operation was performed by Professor Katherine O’Hanlan of Stanford University Medical Center in California, USA. The tumor had a diameter of 1 meter (3 ft). The patient – who weighed 95 kg (210 lb) after the operation and has made a full recovery – left the operating room on one stretcher and the tumor on another.
