Interests of the PET-T.D.M. with F.D.G. in the Hodgkin nodular disease lymphocyte predominance type: about one case

The objective is to illustrate the interest of the PET-T.D.M. with 18F.D.G. in the diagnosis of the nodular Hodgkin disease with lymphocyte predominance; or Loppema-Lennert para granuloma. This disease is a rare anatomo-clinical item of Hodgkin disease characterized by a slow evolution, a localised peripheral injury, a trend to local recurrence, and a risk of transformation towards a lymphoma with big cells. This case enlightens the difficulty for the anatomo-pathologist to distinguish follicular lymphoid hyperplasia and nodular Hodgkin with lymphocyte predominance, of different coverage. In spite of the indolent character of this pathology, the PET-T.D.M. with F.D.G. enlightens easily the suspect character of ganglions injuries. This examination takes here a determinant place in the surveillance of these anatomo-clinical entities located at the limit between the benign and the malignant, allowing to guide the behaviour of the hematologist in function of the scintigraphy evolution. (N.C.)