PMC3858807_01
Patient in case 1. Computed tomography scan with bone window of the skull base and lateral view showing bone overgrowth and narrowing of the foramen oval
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F1
TN affecting the right mandibular branch - V3 [Figure 1]. The facial pain was controlled for one year with carbamazepine 1200 mg per day, but side effects limited the maintenance of this medication.
Patient in case 1. (a) Radioscopic image of the skull in lateral view during needle placement. (b) The foramen oval percutaneous approach during radiofrequency rhizotomy
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F2
Another percutaneous RFR was performed to treat his right V3 pain in 2012 [Figure 2].
PMC3858807_02
Patient in case 2. 3D reconstruction scans obtained after bilateral bifrontotemporal decompressive craniotomy. Note the increased skull thickness and the overgrown of bone in the calvarium and mandible
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F3
A generous bilateral bifrontotemporal decompressive craniectomy was then performed to treat the symptoms of raised ICP that improved after the surgical procedure [Figure 3].
Patient in case 2. Computerized tomography scan with bone window of the skull base showing bone overgrowth and narrowing of the right foramen oval
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F4
PBC was performed [Figure 4]. Postoperatively, the patient was free of pain and the distribution of facial numbness was unchanged.