case_images: PMC9406290_01
case_images: Preoperative MRI: (A) axial T1 image; (B) axial T2 image; (C) coronal T1-weighted image with gadolinium contrast; (D) sagittal T1-weighted image with gadolinium contrast; (E) axial T1-weighted image with gadolinium contrast; Postoperative CT: (F-H) axial scan.
case_images: fsurg-09-864518-g001.jpg
case_images: PMC9406290_01_fsurg-09-864518-g001.jpg
case_images: F1
case_images: Additionally, the mass appeared hyperintense on enhanced MRI, with areas of calcification and heterogeneous contrast enhancement (Figures 1A-E). The tumor was completely removed (Figures 1F-H).
case_images: Preoperative MRI: (A) axial T1 image; (B), axial T2 image; (C) coronal T1-weighted image with gadolinium contrast; (D) sagittal T1-weighted image with gadolinium contrast; (E) axial T1-weighted image with gadolinium contrast; Postoperative CT: (F-H) axial scan.
case_images: fsurg-09-864518-g002.jpg
case_images: PMC9406290_02_fsurg-09-864518-g002.jpg
case_images: F2
case_images: The tumors were partly positive for vimentin (Figures 3E-H) and the tumors were negative for INI1, Smooth Muscle Actin (SMA), and Glial Fibrillary Acidic Protein (GFAP).
case_images: PMC9406290_02
case_images: Hematoxylin and eosin stain (H&E) and immunohistochemical features of the cases. Case 1: (A) The majority of the tumor cells displayed eccentric round nuclei and prominent nucleolus; (B) IHC showing the tumor is negative for integrase interactor 1 (INI1), with vascular endothelial cell internal control being positive; (C) positive for Synaptophysin; and (D) partially positive for vimentin. Case 2: (E) Brisk mitotic activity is common; (F) Immunostaining showed a lack of INI1 protein expression in the tumor cells and apoptotic bodies; (G) positive for Synaptophysin; and (H) partially positive for vimentin.
case_images: fsurg-09-864518-g003.jpg
case_images: PMC9406290_02_fsurg-09-864518-g003.jpg
case_images: F3
case_images: T2-weighted images and a pronounced enhancement after using an MR contrast agent (Figures 2A-E). The tumor was removed completely (Figures 2F-H).
case_images: Preoperative MRI: (A) axial T1 image; (B), axial T2 image; (C) coronal T1-weighted image with gadolinium contrast; (D) sagittal T1-weighted image with gadolinium contrast; (E) axial T1-weighted image with gadolinium contrast; Postoperative CT: (F-H) axial scan.
case_images: fsurg-09-864518-g002.jpg
case_images: PMC9406290_02_fsurg-09-864518-g002.jpg
case_images: F2
case_images: The tumors were partly positive for vimentin (Figures 3E-H) and the tumors were negative for INI1, Smooth Muscle Actin (SMA), and Glial Fibrillary Acidic Protein (GFAP).