Vol. 31 No 1 (2023): Sphenopalatine ganglion block with botulinum toxin type A using a three-dimensional injection guide for facial pain of cancerous origin: study of a clinical case.

Objective: Sphenopalatine ganglion block remains a noninvasive therapeutic option to treat diverse facial pain syndromes. The aim of this case report was to verify the effectiveness and safety of three-dimensional (3D) injection guide for sphenopalatine ganglion block in a tongue cancer patient.

Case report: A 53-year-old man presented with a large squamous cell carcinoma of the right base of the tongue, classified cT4N2M0 and exhibiting excruciating facial pain. A botulinum toxin injection was performed following Dr. Yoshida’s method, using a 3D injection guide.

Conclusions: Sphenopalatine ganglion block with 3D injection guide can be an effective treatment against cancer pain. In this case report a complete withdrawal of painkillers was obtained less than 24 hours after botulinum toxin injection.