[Bone marrow disease revealed by leukocyte scintigraphy in a patient with relapsing fever of unknown origin].

A patient with relapsing fever of unknown origin and initially normal findings on bone-marrow biopsy was further investigated by leucocyte scintigraphy, which showed lack of uptake in the bone-marrow. Repeated bone-marrow biopsy and histological examination of a peripheral lymph node established the diagnosis of Hodgkin's disease.