Hümeyra Karaömer Erdoğan, Ersin Aksay, Mustafa Can Güzelce, Sefer Özgür

Department of Emergency Medicine, School of Medicine, Medical Point Hospital, İzmir Economy University, İzmir, Türkiye

Keywords: Arachnoid cyst, headache, rupture, subdural hemorrhage

Abstract

Arachnoid cysts (ACs) are benign congenital lesions that are often detected incidentally during imaging studies performed for various etiological reasons. These cysts are typically asymptomatic, and in most cases do not require surgical intervention. Although ACs are commonly encountered, they are rarely complicated by intracystic hemorrhage or subdural hematoma. In this report, we present a case of a nontraumatic rupture of an AC, which remained undiagnosed until the age of 52 years.

How to cite this article: Erdoğan HK, Aksay E, Güzelce MC, Özgür S. Nontraumatic subdural hemorrhage due to arachnoid cyst rupture. Turk J Emerg Med 2026;26:82-4.