case_images: PMC9699881_01
case_images: Lumbosacral spine MRI T2 sequence showing soft tissue lesion at the level of L3-L4 (yellow bar).
case_images: SNI-13-496-g001.jpg
case_images: PMC9699881_01_SNI-13-496-g001.jpg
case_images: F1
case_images: It was isointense to hypointense on T1W, hypointense on T2W images [Figure 1] and enhanced with contrast.
case_images: Spinal granular cell tumor. (a) The tumor is composed of sheets of polygonal tumor cells with abundant eosinophilic granular cytoplasm (Hematoxylin and Eosin, original magnification x20). (b-d) The tumor cells are diffusely positive for S-100, SOX-10, and inhibin (original magnification x20).
case_images: SNI-13-496-g002.jpg
case_images: PMC9699881_01_SNI-13-496-g002.jpg
case_images: F2
case_images: It revealed polygonal tumor cells with abundant, eosinophilic, and granular cytoplasm arranged in sheets [Figure 2a]. Immunohistochemically, the tumor cells were diffusely positive for S-100, SOX-10, and inhibin [Figures 2b-d] and showed patchy positivity for CD68.