ABSTRACT
Introduction 775 Ultrasonography 776 Nodal examination 776 Extranodal examination 776 Gastric endosonography 777 Computed tomography 777 Nodal examination 777 Visceral localizations 778 Magnetic resonance imaging 779
Current applications of magnetic resonance imaging 780 Newer magnetic resonance imaging techniques 781 Residual masses 782 Non-Hodgkin lymphoma and immunodeficiency 782 Post-treatment imaging 784 Conclusions 785 Key points 785 References 786
The frequent involvement of a broad range of extranodal sites in the non-Hodgkin lymphomas (NHLs) necessitates a correspondingly broad range of imaging studies, if the extent of disease at the time of diagnosis and the response to treatment are to be accurately assessed.1-4 Extranodal involvement was observed in 44 percent of NHL patients by Scutellari5 and was most prevalent in the gastrointestinal tract and respiratory sites.
