RT Journal Article SR Electronic T1 Primary testicular non-Hodgkin's lymphoma with atrial mass as an initial presentation of acquired immunodeficiency syndrome JF Saudi Medical Journal JO Saudi Med J FD Prince Sultan Military Medical City SP 1278 OP 1280 VO 28 IS 8 A1 Ruba A. Halloush A1 Haitham Arabi A1 Mousa A. Al-Abbadi YR 2007 UL http://smj.org.sa/content/28/8/1278.abstract AB The association between human immunodeficiency virus HIV infection and the increased incidence of testicular tumors is a recent well-recognized phenomenon. Testicular tumors in the setting of HIV infection are most frequently of germ cell origin, less commonly lymphomas. We are presenting a unique case of testicular non-Hodgkin's B-cell lymphoma with associated atrial mass and mediastinal lymphadenopathy. The patient was not known to be HIV positive at the time of presentation. The initial clinical, radiological, and gross pathologic impression was that of seminoma. Discussion of the differential diagnosis and appropriate work up is presented.