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Occipital neuralgia, also known as C2 neuralgia or, rarely, Arnold's neuralgia, is a medical condition characterized by chronic pain in the upper neck, back of the head and behind the eyes.
These areas correspond to the locations of the lesser and greater occipital nerves.
Wrapped around the greater occipital nerve is the occipital artery, which can contribute to the neuralgia. The condition is also sometimes characterized by diminished sensation in the affected area.