Musculoskeletal Involvement in Non-Hodgkin Lymphoma

Lymphoreticular neoplasm of the reticulo-endothelial system is a well-known entity in which the tumor arises from lymphoid precursor cells. The disorders included in this group are NHL and HD, with a changing terminology. The old classification of primary NHL included lymphosarcoma and reticulum cell sarcoma. The cells of malignant lymphomas may exhibit various degrees of differentiation, which may be shown with immunohistochemistry (Resnick and Haghighi 1996; National Cancer Institute 1982).