Nodular lymphomas with intracellular immunoglobulin inclusions: report of three cases and a review.

Three cases of nodular lymphomas with cytoplasmic inclusions were studied histologically, histochemically and immunocytochemically, and ultrastructurally. One case had Russell body-like inclusions, another had needle-like inclusions not previously reported, while the last showed cells with cytoplasmic vacuoles. Two of the cases were followed to necropsy. New observations are described and the available literature is reviewed.