Figure 13.
One-day-old boy with a congenital lesion of the left orbit. MR performed soon after birth shows a heterogeneous mass with multiple cystic-like components and fluid-blood levels on T2-weighted images (A) and a prominent solid component on axial T1 post-contrast images (black arrowhead in B); marked proptosis of the left eye is also evident. The lesion undergoes considerable growth after one month (C,D). The histological diagnosis was of rhabdomyosarcoma of the orbit.