case_images: PMC11338858_01
case_images: Tumor observed by pre-operative (A) MRI T1W with contrast sagittal and axial (B) MRI PDFS sagittal and axial.
case_images: fsurg-11-1417418-g001.jpg
case_images: PMC11338858_01_fsurg-11-1417418-g001.jpg
case_images: F1
case_images: The MRI exhibited an inhomogeneous high signal on T2-weighted image/Short tau inversion recovery (T2WI/STIR) with faint internal septations and intense heterogeneous enhancement on post-contrast sequences (Figure 1).
case_images: (A) The tumor was attached to surrounding structures including (B) the neurovascular bundle composed of the popliteal artery and vein, and sciatic nerve, and (C) the femur bone. (D) Tumor attachment to the femur bone.
case_images: fsurg-11-1417418-g002.jpg
case_images: PMC11338858_01_fsurg-11-1417418-g002.jpg
case_images: F2
case_images: The resection revealed strong adhesion of the tumor to the femur, posterior thigh muscles, popliteal artery and vein, and sciatic nerve branches, as depicted in Figure 2.
case_images: (A) Huge resected tumor with an irregular shape, grayish tissue covered by fat and skeletal muscle, and a measurement of 8 x 6 x 4.5 cm.
case_images: fsurg-11-1417418-g003.jpg
case_images: PMC11338858_01_fsurg-11-1417418-g003.jpg
case_images: F3
case_images: Grossly, a large irregular tumor with daughter cysts was removed, presenting as grayish tissue covered by fat and skeletal muscle, measuring 8*6*4.5 cm (Figure 3).
case_images: No enhancing mass lesions in post-operative (A) MRI T1W contrast sagittal and axial (B) MRI PDFS axial
case_images: fsurg-11-1417418-g004.jpg
case_images: PMC11338858_01_fsurg-11-1417418-g004.jpg
case_images: F4
case_images: MRI was conducted, revealing a thickened distal part of the sciatic nerve, no enhancing mass lesions or fluid collection, and postoperative changes with enhancing soft tissue and hypointense foci (surgical material) (Figure 4).