Hemifacial Pain and Hemisensory Disturbance Referred from Occipital Neuralgia Caused by Pathological Vascular Contact of the Greater Occipital Nerve

Figure 1

A schematic diagram demonstrating the distribution of occipital neuralgia and hemifacial sensory change with facial pain. (a) The grey areas over the left occipital area indicate the distribution of stabbing pain of occipital neuralgia. A tender point was present along the course of the greater occipital nerve. (b) The obliquely hatched area denotes regions of facial pain in addition to hypesthesia. The horizontally hatched area shows the distribution of hemifacial hypesthesia and paresthesia.

(a)

(b)