RESUMO
Introduction Short-lasting unilateral neuralgiform headache attacks with conjunctival injection and tearing (SUNCT)-like attacks are rarely reported in the pediatric population and may remain undiagnosed and under-investigated as a result. Case presentation We present a case of a 15-year-old male with intermittent, episodic, right-sided brief headaches most in keeping with SUNCT, initially diagnosed as paroxysmal hemicrania, but with no response to indomethacin. The pain was likewise not responsive to typical migraine treatments or steroids. Management and outcome Contrast-enhanced magnetic resonance imaging demonstrated a right pontine capillary telangiectasia with an associated developmental venous anomaly that was adjacent to the root of the right trigeminal nerve. Differential diagnosis included first division trigeminal neuralgia with autonomic features. The patient's pain was partially alleviated by oxygen administration and responded well to carbamazepine; he remained pain free on carbamazepine a year later. Conclusion This case highlights the diagnostic dilemma of differentiating SUNCT from trigeminal neuralgia with autonomic features, both of which are rare diagnoses in pediatric patients, and the importance of appropriate neuroimaging to rule out secondary causes in patients presenting with trigeminal autonomic cephalalgias, recognizing that abnormalities identified on neuroimaging, such as vessels adjacent to the trigeminal nerve, may not be causative findings.