Movie 1.

Magnetic resonance imaging (MRI) of multicentric papillary thyroid carcinomas. Scrolling stack of images based on transverse MRI encompassing the entire thyroid gland and surrounding neck tissues in a 14 month old TgCreER^T2;Braf^CA/+ mouse subjected to spontaneous (non-induced) Braf^CA activation. For technical data and keys to image details, see Materials & Methods and accompanying Figs. 1G and H. Image resolution is inherited to technical constraints.