561A RARE CASE OF MULTIPLE LYMPHOMATOUS POLYPOSIS OF THE INTESTINEMultiple Lymphomatous Polyposis is a rare gastrointestinal lymphoma characterized by the presence of numerous polypoid lesions along one or more segments of the GI tract. The polyps measure from a few millimeters to several centimeters, involving the small and large bowel in 80-90% of cases. Histologically MLP signifies a heterogeneous group of lymphomas. In the vast majority of cases it is mantle cell lymphoma. Mucosa associated lymphoid tissue (MALT) lymphoma, follicular lymphoma and primary T cell lymphoma have also been described to manifest as MLP. We report a case of this rare syndrome. A 56year old man presented with small bowel obstruction. A right hemicolectomy with primary end-to-end anastomosis was done. Macroscopically cut open intestine shows multiple small polyps throughout the intestine with two large masses measuring 7cm and 4cm respectively. There was ileal obstruction due to large polypoid mass. Histopathological study showed a diffuse proliferation of monotonous small lymphoid cells and IHC features were compatible with B cell NHL Small Lymphocytic type.drmonoj_deka@rediffmail.comResearch732017Multiple Lymphomatous Polyposis,NHL, Small Lymphocytic TypeAnuradhaTalukdar,Monoj Kumar Deka,Ravi KannanCachar Cancer Hospital and Research Centre, Meherpur, Silchar-788015, India.,Silchar Medical College and Hospital, Ghungoor, Silchar-788014, India.,Cachar Cancer Hospital and Research Centre, Meherpur, Silchar-788015, India.