An Unusual Presentation of Primary Rib Non Hodgkins Lymphoma Masquerading as Male Breast Cancer

摘要

Primary bone lymphoma accounts for less than 5?% of all primary bone tumors, 4-5 % extranodal lymphomas and less than 1?% of all non Hodgkin’s lymphoma [1]. Males in their fifth and sixth decade are usually affected [2]. Long bones are most frequently involved, involvement of flat bones is uncommon and isolated rib involvement is very rare [3]. Diffuse large-B-cell lymphoma (DLBCL) accounts for the most common histology. Most common presentation is either painful swelling or pathological fracture. Due to its rarity, only a few retrospective studies have been published describing the prognosis and treatment of primary bone lymphoma.