Patient with neurofibromatosis 1. Evaluate margins of the plexiform tumor. Scattered lesions within the skin and soft tissues with increased T2 signal are compatible with neurofibromas.There is moderate inflammation of the left gluteal soft tissues extending to the left labia with associated atrophy of the musculature in this region. Additionally the left inferior pubic ramus appears chronically deformed. These findings are likely postsurgical in etiology. Within the postsurgical site, there is a residual plexiform neurofibroma adjacent to the medial left ischium measuring approximately 2.8 x 1.8 x 2.7 cm. This lesion demonstrates enhancement.Additionally, along the course of the left sciatic nerve at the level of the mid femur there is a plexiform neurofibroma measuring approximately 3.5 x 2.8 x 5.7 cm. Along the course of the right sciatic nerve on the contralateral side at a level just inferior to the lesser trochanter there is an another plexiform neurofibroma measuring approximately 4.8 x 3.7 x 6.9 cm. These lesions demonstrate enhancement.There is enlargement of the lumbosacral nerve plexus along with enlargement of the foramina. Small ovarian cysts are noted bilaterally, likely physiologic in nature.
1. Small residual plexiform neurofibroma in the surgical bed.2. Additional plexiform neurofibromas along the course of the bilateral sciatic nerves as above. 