title: Secondary trigeminal neuralgia caused by pharyngeal squamous cell carcinoma - a case report -.
abstract: Trigeminal neuralgia (TN) is characterized by recurrent paroxysms of unilateral facial pain that typically is severe, lancinating, and activated with cutaneous stimulation. There are two types of TN, classical TN and atypical TN. The pain nature of classical TN are the same as those described above, whereas atypical TN is characterized by constant, burning pain. We describe the case of a 49-year-old male presenting with right-sided facial pain. The patient was diagnosed with temporomandibular joint disorder at a dental clinic and was on medical treatment, but his symptoms worsened gradually. He was referred to our pain clinic for further evaluation. Radiologic evaluation, including MRI, showed a parapharyngeal tumor. For the relief of TN, a right mandibular nerve (V3) root block was performed at our pain clinic, and then he was scheduled for radiation and chemotherapy.
authors.affiliation: Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, Seoul, Korea.
authors.forename: Min Seok
authors.initials: MS
authors.lastname: Kim
authors.forename: Yong Jae
authors.initials: YJ
authors.lastname: Ryu
authors.forename: Soo Young
authors.initials: SY
authors.lastname: Park
authors.forename: Hye Young
authors.initials: HY
authors.lastname: Kim
authors.forename: Sangbum
authors.initials: S
authors.lastname: An
authors.forename: Sung Woo
authors.initials: SW
authors.lastname: Kim
keywords: parapharyngeal tumor; trigeminal neuralgia; trigeminal neuritis