True about intestinal lymphoma -
Intestinal lymphoma 

60-80% of intestinal lymphomas are B cell lymphomas, mostly diffuse large B cell type of Non-Hodgkin's lymphoma of the distal small intestine and especially in the ileo-cecal region.
Other types of intestinal lymphomas are MALT lymphoma, peripheral T cell lymphoma, Burkitt's lymphoma.
Involved in non-Hodgkin's lymphoma
Made up of predominantly T cells
C-kit positive
Most common at Ileocecal junction