Figure 3From: Short-lasting unilateral neuralgiform headache attacks with ispilateral facial flushing is a new variant of paroxysmal extreme pain disorderSPECT co-registered to MRI (SISCOM) analysis in Patient 2. A) Transverse, B) sagittal, and C) coronal images. A focal increase in perfusion is noted at the right trigeminal root entry zone during a right-sided attack.Back to article page