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. Author manuscript; available in PMC: 2019 Jun 1.
Published in final edited form as: J Pain. 2018 Jan 31;19(6):626–634. doi: 10.1016/j.jpain.2018.01.003

Fig 3. Schematic drawing and anatomical demonstration of the GG injection site.

Fig 3

(A) Schematic drawing showing the site of the GG injection. The structure details: 1) V1/V2 (ophthalmic/maxillary), 2) V3 (mandibular), and 3) sensory root. (B) Anatomical position of the cannulation. (C) Methylene blue injection showing the drug injection site.