Malignant lymphomas (ML) and HIV infection in Tanzania.

"Competing interests The authors declare that they have no competing interests."

"We are indebted to MNH clinicians who submitted patient biopsies and sera to the Departments of Histopathology and Microbiology respectively. The technical assistance of Ms. A. Magogo, Ms. V. Nelson and Mr. M. Chiragwile (MNH) as well as Mr. Ephraem Mbena (MUHAS) is highly appreciated. This study was supported by Ministry of Health and Social Welfare (Tanzania) and Sida/SAREC (Sweden) through the TANSWED HIV Programme (PROJECT E) under Prof. Peter Biberfeld (Sweden). Ethical clearance was obtained from MUHAS for TANSWED Project E and also the Karolinska University Hospital Solna (Dnr 01-096) Sweden. Prof. P. Biberfeld (Sweden) also constructively reviewed the manuscript."