Fig. 1From: Short-lasting unilateral neuralgiform headache attacks with cranial autonomic symptoms (SUNA) secondary to epidermoid cyst in the right cerebellopontine angle successfully treated with surgeryBrain MRI in axial plane and T2 sequences: extraaxial lesion at the right cerebellopontine angle, heterogeneous, hyperintense with edges well defined. The lesion produces imprint on the brain stem without signs of infiltration. All these features are suggestive of an epidermoid cystBack to article page