Referred Trigeminal Facial Pain from Occipital Neuralgia Occurring Much Earlier than Occipital Neuralgia

Figure 1

Schematic diagram demonstrating the distribution and characteristics of pain over the years. (a) The gray areas over the left preauricular temporal area indicate the distribution of paroxysmal lancinating pain that started in 2014. Pain initially began as a persistent aching pain in the left molars and gums (light gray area). (b) In 2016, paroxysmal pain occurred in the left preauricular temporal region, and at the same time in the left vertex (obliquely hatched area) and the left deep ear (black circle). (c) It was not until 2018, four years after the occurrence of paroxysmal pain, that the stabbing pain in the retroauricular occipital area (transversely hatched area) occurred as pain in the left temporal region (gray area), left vertex (obliquely hatched area), and left deep ear (black circle).

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