What Causes White Secretion During Treatment Of Ovarian Cancer In Upper Port?

Hi, may I answer your health queries right now ? Please type your query here...Having received chemo for ovarian cancer in both a lower (partioneal) port and an upper port. Both have now been removed but the last few treatments in the upper port produced a white secretion that none of the doctors or nurses were familiar with. A sample of the secretion was sent to a lab to determine if it was an infection but that proved to be negative. Now that the upper port has been removed the cavity had a slight infection and I have having to have it repack daily until it begins to heal internallly. So far no one has a clue as to what the white secretion consist of and all of my research on line has produced nothing. Can you advise?????