case_images: PMC11190363_01
case_images: Case presentation. (A-C) Preoperative contrast-enhanced cervical Magnetic Resonance Imaging revealed an intradural-extramedullary mass measuring 3.7 x 1.7 x 3.0 cm, protruding outward through the left intervertebral foramen of C1-2. The lesion was of equal T1 and T2 signal with mild enhancement. (D) After removal of the posterior arch, bilateral axial lamina, and posterior ligamentous complex, a median linear incision of the dura was made to expose the tumor. (E) Following tumor removal, the posterior arch of the atlas and bilateral axial lamina were repositioned and fixed in their physiological location. (F) Postoperative pathology confirmed a diagnosis of Schwannoma. (G) Computed tomography (CT) conducted at 3 days after surgery showed satisfied position of the internal fixation. (H-J) Postoperative CT and plain radiograph revealed the progressive ossification of the posterior arch and axial lamina, with no signs of instability or deformities.
case_images: fsurg-11-1374208-g001.jpg
case_images: PMC11190363_01_fsurg-11-1374208-g001.jpg
case_images: F1
case_images: Spine plain radiographs performed 6 months after surgery confirmed the correct alignment of the laminae with no deformities (Figure 1).