Fig. 2From: Thermographic follow-up of postherpetic neuralgia (PHN) subsequent to Ramsay Hunt syndrome with multicranial nerve (V, VII, VIII and IX) involvement: a case reportUnder C-arm guidance, the needle is safely advanced until its tip is positioned in the foramen ovale anteroposterior (A, A1, A2) and equal to the lateral clivus (B) lateralBack to article page