CMV infection and pneumonia in hematological malignancies.

While infection with cytomegalovirus (CMV), a member of the herpes virus family is a major cause of morbidity and mortality in patients who are immunosuppressed because of previous allogeneic bone marrow transplant, viral infection and subsequent disease are rarely reported in haematological diseases unrelated to this condition. We report here three cases of CMV pneumonia in patients affected by nonHodgkin lymphoma (NHL) and myeloma. The role of T-cell depletion is discussed.