“…The involvement of extranodal sites is a common feature in the course of NHL. Moreover, some NHLs are considered to originate at sites other than the lymph nodes or the spleen, and are referred to as primary extranodal NHL (PE-NHL) [12,13]. When NHL has extranodal presence, the involved sites can be the gastrointestinal tract, bone, brain, testis, ovary, lung, nasopharynx, soft tissue, thyroid, kidney, liver, breast, skin, etc.…”