FIG 1. 50-year-old man with adenoid cystic carcinoma of the maxillary sinus. MR images were obtained 2 months after right orbital exenteration, radical maxillectomy, and rectus abdominis free flap reconstruction.

A, Coronal noncontrast T1-weighted (400/9/2) image shows typical striations within the large muscular flap (arrows) occupying the orbitomaxillary defect.

B, Contrast-enhanced, fat-suppressed T1-weighted (583/9/2) image shows bright enhancement of the muscular flap component.

C, Axial fast spin-echo T2-weighted (4733/98/2) image with fat suppression shows signal hyperintensity of the muscular flap component (asterisks). Though less evident than on the T1-weighted sequence, muscular striations can be seen on this image.