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Keywords:

  • SUNCT;
  • sinusitis;
  • trigeminal autonomic cephalalgia

Sinusitis has rarely been associated with short-lasting unilateral neuralgiform headache attacks with conjunctival injection and tearing (SUNCT) syndrome. We describe a case of symptomatic SUNCT syndrome caused by sinusitis, which showed typical features of SUNCT syndrome. The patient's symptoms completely resolved without recurrence after endoscopic sinus surgery followed by antibiotic treatment. We suggest that ipsilateral paranasal sinusitis accompanied by the spreading of inflammation through a dehiscence in the lamina papyracea could lead to the development of SUNCT syndrome.