lymphoplasmacytic infiltrate-does anyone know what this means?

I went for a consult today with a new gastroenterologist and "Crohn's Disease specialist". She looked at the pathology report on my last colonoscopy last March and was concerned that the report did not really account for a lot of my symptoms and the dramatic change in the symptoms from those of the last 17 years. She said the pathology report mentioned something called lymphoplasmacytic infiltrates. Does anyone know what that means? I could not find much on the web.....

The pathology report says lymphoplasmacytic.....(lymphocytes and plasma???)

Thanks- That makes sense and is reassuring. My hematologist has run a zillion labs that seem to have ruled out a number of really scary options and the new gastroenterologist is determined to do a more extensive evaluation of the cells she biopsies when she does a colonoscopy and endoscopy in mid-February ( she wants me to be off the pred before she does it, which makes sense to me). I am hopeful that she will figure out what is going on. Thanks for responding.

Very very sparingly and many years ago- both because they really irritate my upper GI and because I have a blood clotting disorder