Sequential Occurrence of Eosinophilic Gastrointestinal Disease in a Case of Waldenström's Macroglobulinemia in Remission: An Unusual Report with Review.

Waldenström macroglobulinemia (WM) is a rare lymphoproliferative malignancy presenting with para-proteinemia. The symptoms are attributable to both lymphoproliferation and IgM flare. Gastrointestinal manifestations are not uncommon. It is an indolent disease with good response to chemoimmunotherapy but with possible persistence of asymptomatic paraproteinemia. Resurgence of gastrointestinal symptoms in a patient of WM maintaining reasonable response warrant a thorough search for alternate pathology. Herein we describe a rare case of sequential occurrence of WM with Eosinophilic Gastrointestinal Disease posing a diagnostic and therapeutic challenge.