Low-Grade Fibromyxoid Sarcoma of the Lateral Skull Base: Presentation of Two Cases

Figure 1

Pre- and postoperative MRI scans of Case 1. (a) Preoperative MRI T2 sequence showing the tumour measuring 25 × 20 mm at the jugular foramen with infralabyrinthine extension causing erosion of the posterior semicircular canal. Note clear distinction between the tumour and cerebellum posteriorly. (b) Preoperative MRI T1 with gadolinium enhancement. (c) Intraoperative picture after extended mastoidectomy and neck dissection. The next step was anterior rerouting of the facial nerve, which gives required access to the jugular foramen. (d) Postoperative MRI T1 with gadolinium enhancement after 3 years of follow-up. Total tumour clearance and no evidences of recurrence could be confirmed.