case_images: PMC3589844_01
case_images: Foot asymmetry is evident, along with dorsal calluses (arrow) on affected left foot
case_images: SNI-4-8-g001.jpg
case_images: PMC3589844_01_SNI-4-8-g001.jpg
case_images: F1
case_images: The corresponding toes were noted to have nonpainful dorsal calluses [Figure 1].
case_images: Precontrast (left) and postcontrast (right) axial T1-weighted magnetic resonance images of the lower extremity demonstrate the presence of a well-circumscribed, mildly heterogeneously enhancing mass in the location of the right sciatic nerve (arrows)
case_images: SNI-4-8-g002.jpg
case_images: PMC3589844_01_SNI-4-8-g002.jpg
case_images: F2
case_images: The tumor appeared hypointense on T2-weighted images, isointense-to-hypointense signal on the T1-weighted image with mild heterogeneous internal enhancement in a longitudinal orientation after administration of gadolinium contrast [Figure 2].
case_images: Intraoperative photograph at open biopsy showing the hypertrophic, firm, and bulbous sciatic nerve
case_images: SNI-4-8-g003.jpg
case_images: PMC3589844_01_SNI-4-8-g003.jpg
case_images: F3
case_images: The whole sciatic nerve appeared involved and was notably hypertrophic, firm, and bulbous [Figure 3].
case_images: Photomicrograph: Neuromuscular choristoma showing skeletal muscle mixed with nerve fibers (H and E, magnification x200)
case_images: SNI-4-8-g004.jpg
case_images: PMC3589844_01_SNI-4-8-g004.jpg
case_images: F4
case_images: Within the specimen, small nerve bundles and axons were seen intermixed with adjacent mature striated skeletal muscle bundles, surrounded by a dense collagenous matrix [Figure 4].