The punch-up was detailed in the Industrial Relations Commission where Dr Samaraweera alleged she was unfairly dismissed. She failed to win her job back.
Tensions between the two women had been simmering for more than a year over work loads and they were not on speaking terms when they bumped into each other in the pathology unit.
Despite her 17cm height disadvantage, Dr Samaraweera used a "cricket bowl action" as she broke a document tray while trying to hit Dr Fredericks in the head, the commission heard.
