[Filling the thymic space after treatment of Hodgkin's disease: rebound or relapse].
We report the case of a 36-year-old women with Hodgkin's disease treated with polychemotherapy and bone marrow autograft. Progressive growth of a thymic mass suggested possible relapse four months after treatment withdrawal. This mass did not exhibit gallium-67 uptake but showed strong affinity for 18-FDG (SUV=6.8). Surgical biopsy ruled out recurrence of Hodgkin's disease of the thymus and led to the diagnosis of thymic rebound. The aspect of the thymic compartment returned to normal spontaneously at one year.