Hi Stan, yes I have been blessed. I wondered about the variety of rounds of Rituximab infusions myself. I see my cancer do in Sept & might ask her. I only know she said if it returns then they will put me back on a greater quantity of rounds - so 6 rather than 4 etc. You are right since you had lung cancer surgeries it would certainly be a factor in chest fluid, regardless of the complication of SMZL. What area of the country do you live? Under any insurance you always have the option of a consult and can bring all those questions to that one visit. Stay strong!