Özet:

Objective: The objective of this study was to evaluate retrospectively the MRI features of incidental intracranial arachnoid cysts with regard to their distribution of cyst location, sidedness, Galassi type, and gender in children during the workup for headache and seizures. Method: MRI scans of the head performed from May 2005 to May 2015 were reviewed retrospectively to analyze arachnoid cysts detected incidentally in children. Results: The mean ages of boys (n=63) and girls (36) were 8.4±5.0 (2 months to 18 years) and 8.9±4.0 (6 months to 14 years), respectively. Although the number of boys with left, right or midline sidedness was higher compared to girls, these differences were not reached statistical significance (p>0.5). For both boys and girls, arachnoid cysts were located in middle cranial fossa, frontal convexity, and posterior fossa significantly more commonly than other locations. Overall, for all locations, the number of boys was greater compared to girls. Although the number of boys with Galassi types I, II, and III was greater compared to girls, these differences did not reach statistical significance. Conclusions: In carefully selected patients, MRI provides information about presence and nature of arachnoid cysts that are otherwise impossible to detect clinically. Intracranial arachnoid cysts are one of the important incidental findings detected during the MRI of head. In an MRI report, the size, location, and other important features of arachnoid cysts need to be described in detail for the long-term follow-up and management of these benign lesions that are most commonly asymptomatic but may present with severe symptoms in some cases.

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