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Case Reports
. 2015 Jun 22:80:324-7.
doi: 10.12659/PJR.893928. eCollection 2015.

Spontaneous Rupture of the Middle Fossa Arachnoid Cyst into the Subdural Space: Case Report

Aydın Bora  1 , Adem Yokuş  1 , Abdussamet Batur  1 , Mehmet Deniz Bulut  1 , Alpaslan Yavuz  1 , İsmail Gülşen  2 , Mesut Özgökçe  1 , Mehmet Arslan  2
Affiliations
Case Reports

Spontaneous Rupture of the Middle Fossa Arachnoid Cyst into the Subdural Space: Case Report

Aydın Bora et al. Pol J Radiol. .

Abstract

Background: Arachnoid cysts are congenital, benign and intra-arachnoidal lesions. A great majority of arachnoid cysts are congenital. However, to a lesser extent, they are known to develop after head trauma and brain inflammatory diseases. Arachnoid cysts are mostly asymptomatic and they can develop anywhere in the brain along the arachnoid membrane.

Case report: Arachnoid cysts form 1% of the non-traumatic lesions which occupy a place and it is thought to be a congenital lesion developed as a result of meningeal development abnormalities or a lesion acquired after trauma and infection. There is a male dominance at a rate of 3/1 in arachnoid cysts which locate mostly in the middle fossa. Our patient was a 2-years-old boy.

Conclusions: As a conclusion, spontaneous subdural hygroma is a rare complication of the arachnoid cysts. Surgical intervention could be required in acute cases.

Keywords: Arachnoid Cysts; Magnetic Resonance Imaging; Subdural Effusion; Tomography Scanners, X-Ray Computed.

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Figures

Figure 1
Figure 1
Axial CT image. There is an arachnoid cyst in the left temporal region visible.
Figure 2
Figure 2
MRI images obtained in January 2014. (A) Axial T1, (B) axial T2, (C) sagittal T2, (D) axial FLAIR, (E) axial DWI, (F) axial ADC.
Figure 3
Figure 3
MRI images obtained in February 2014. (A) Axial T1, (B) axial T2, (C) sagittal T2, (D) axial FLAIR, (E) axial DWI, (F) axial ADC.
See this image and copyright information in PMC

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