{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,8]],"date-time":"2026-10-08T04:30:25Z","timestamp":1791433825804,"version":"4.3.3"},"reference-count":34,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2025,10,1]],"date-time":"2025-10-01T00:00:00Z","timestamp":1759276800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Surg."],"abstract":"<jats:p>This case report discusses a 16-year-old male with a previously diagnosed left fronto-temporo-parietal arachnoid cyst (AC) who developed progressively worsening intermittent headaches. Magnetic resonance imaging (MRI) revealed a spontaneous chronic subdural hematoma (CSDH), despite no history of trauma or bleeding disorders. The cyst, discovered incidentally three years prior, had been asymptomatic until this event; hence, no interval cranial computed tomography (CT) or MR imaging was performed. The patient underwent burr-hole irrigation and drainage under general anaesthesia. Postoperative scans confirmed complete resolution of the hematoma and a significant reduction in the cyst size, with no recurrence of the cyst at the six-month follow-up. This case, supported by a systematic review of 28 recent studies (2020\u20132025), highlights that AC can spontaneously rupture, leading to CSDH. Burr-hole irrigation surgery proves to be a safe and efficient intervention, emphasizing the need for long-term monitoring in AC patients to manage potential hemorrhagic complications promptly.<\/jats:p>","DOI":"10.3389\/fsurg.2025.1671194","type":"journal-article","created":{"date-parts":[[2025,10,1]],"date-time":"2025-10-01T08:08:39Z","timestamp":1759306119000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":3,"title":["Spontaneous rupture of an arachnoid cyst combined with chronic subdural hematoma: a case report and review of the 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