SHERRINGTON1 defined pain as the psychic adjunct of an imperative protective reflex. The pathways for pain have usually been explained on a somatic basis. Other means for the explanation of pain had to be found when there was no explanation on a somatic basis. Some of these clinical examples are seen in coronary cardiac disease, pulmonary thrombosis, pericarditis, distention of the gallbladder, intestinal obstruction, Dietl's crisis, migraine, thrombophlebitis, thromboangiitis obliterans (Buerger's disease) and others.
There are many types of neuralgia of the face, and the title of our paper is a misnomer. It should be "Vascular Pain of the Face." However, we have chosen the commonly used term as the condition is so designated clinically and described under this title in the literature.
Leriche2 listed the following types of neuralgia of the face that are not of trigeminal nerve origin:
1. Transient, due to some curable condition