case_images: PMC10623988_01
case_images: Histological examination: A. spindle-cell neoplasm consistent with low-grade fibrosarcoma, B. positive staining for vimentin, C. negative staining for desmin, D. negative staining for myogin, and E. negative staining for S-100.
case_images: 10.1177_23247096231209541-fig4.jpg
case_images: PMC10623988_01_10.1177_23247096231209541-fig4.jpg
case_images: fig4-23247096231209541
case_images: Immunohistochemistry confirmed the diagnosis with vimentin (which was positive), S-100, desmin, and myogenin (which were negative) (Figure 4).