p

rimary lung cancer remains the leading cause of cancer-related death in the Western world, and the lung is a common site for recurrence of extrathoracic malignancies. Ssmall-animal (rodent) models of cancer can have a very valuable role in the development of improved therapeutic strategies. However, detection of mouse pulmonary tumors and their subsequent response to therapy

in situ is challenging. We have recently described MRrI as a reliable, reproducible and nondestructive modality for the detection and serial monitoring of pulmonary tumors.