Pulsed Radiofrequency of the Trigeminal Ganglion for Treating Postherpetic Neuralgia of the Ophthalmic Branch

Figure 1

The image showed the oval foramen, located at the upper third of the mandibular ramus, inside of the condyle, penetrating the ophthalmic branch of the trigeminal ganglion toward the medial corner of the oval foramen (arrow).