[Fever of unknown origin as initial manifestation of Castleman's disease: apropos of 2 cases].

Castleman's disease is a rare lymphoproliferative disorder with a great range of clinical presentation and localization. It usually appears in young people and its etiology is unknown. Clinical features are not specific: fever, asthenia, hypochromic anemia and hypergammaglobulinemia. We report here two cases of Castleman's disease whose peculiarity lies in the fact that the first sign was fever of unknown origin. In both cases the use of a CT scan was very important for the diagnosis.