Patients with a definite diagnosis of classical TGN and PIFP (according to the 2020 ICOP Classification) will undergo a structured clinical questionnaire and a trigeminal sensory profile using the quantitative sensory testing. Clinical measures and sensory profiles will be correlated with the presence and the geometry of neurovascular compression at MRI. Moreover quantitative structural neuroimaging analysis, such as trigeminal root volume, will be performed in each patient and correlated with clinical and QST data.
Patients with a definite diagnosis of classical TGN and PIFP will undergo a structured clinical questionnaire and a trigeminal sensory profile using the quantitative sensory testing. Clinical measures and sensory profiles will be correlated with MRI measures.