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Case Reports
. 2017 Dec 29;13(2):516-521.
doi: 10.1016/j.radcr.2017.12.006. eCollection 2018 Apr.

Arachnoid cysts with spontaneous intracystic hemorrhage and associated subdural hematoma: Report of management and follow-up of 2 cases

Affiliations
Case Reports

Arachnoid cysts with spontaneous intracystic hemorrhage and associated subdural hematoma: Report of management and follow-up of 2 cases

Mehmet Emin Adin et al. Radiol Case Rep. .

Abstract

Arachnoid cysts are one of the most frequently encountered intracranial space-occupying lesions in daily neurosurgery and neuroradiology practice. Majority of arachnoid cysts, particularly those of smaller sizes, have a benign uneventful lifetime course. Certain symptoms may indicate serious complications related to underlying arachnoid cysts. Hemorrhage is one of the most fearsome complications of arachnoid cysts and almost all reported cases in the literature have undergone surgical correction. In this study, we aimed to present clinical and radiologic follow-up findings in two adult cases of intracranial arachnoid cyst with spontaneous intracystic hemorrhage and associated subdural hematoma, one of which was successfully treated conservatively. In addition, we broadly summarized and discussed pertinent studies in the English literature.

Keywords: Arachnoid cyst; Headache; Intracystic hemorrhage; Subdural hematoma.

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Figures

Fig. 1
Fig. 1
Hyperdense extra-axial cyst in the right anterior middle cranial fossa consistent with a blood-filled arachnoid cyst is seen on initial CT scan at admission (A). A companion right parietal SDH isodense to adjacent brain parenchyma with mild mass effect on the right hemicerebrum was also evident (B). Both the arachnoid cyst and ipsilateral SDH demonstrate high signal intensity on T1W MRI (C and D). CT, computed tomography; MRI, magnetic resonance imaging; SDH, subdural hematoma.
Fig. 2
Fig. 2
CT image performed about 2 months before the hemorrhagic event shows a left-sided arachnoid cyst extending to the sylvian fissure with remodeling of adjacent inner skull table (A and B). Intracystic hemorrhage confined to the cyst border (C). A slightly hyperdense ipsilateral subdural hematoma is also evident (D). CT, computed tomography.

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