ABSTRACT
Received:
16 August 2014
Accepted:
13 December 2014
Key words:
Arachnoid cyst,
Chronic subdural
hematoma,
Posttraumatic intracranial
hypertension
Background: Chronic subdural hematomas (CSDH) tend to occur in elderly patients
with a history of mild head injury few weeks prior to the onset of symptoms. Arachnoid
cysts (AC) are relatively common congenital intracranial mass lesions that arise during
the development of the meninges. However, these two distinct clinical entities
sporadically occur together in relatively young patients. Objective: In light of a
literature review, a trial to explain the association between arachnoid cyst and subdural
hematoma is proposed. Patients & Methods: This is a report of four cases presented
with chronic subdural hematoma over the frontoparietal region, with an incidental
finding of an arachnoid cyst over the Sylvian fissure. Results: Three patients were males
and one female. Age ranged from ten years to forty one years. All patients had history of
minor head trauma. Their symptoms were due to intracranial hypertension, like those
with isolated CSDH. All patients’ symptoms regressed after evacuation of CSDH.
Conclusion: Arachnoid cyst is a possible risk factor for subdural hematoma in young
adults. A burr hole procedure with drainage of hematoma is an adequate treatment.
© 2014 Egyptian Journal of Neurosurgery. Published by MEDC. All rights reserved