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. 2018 Apr 17;8(2):92-93.
doi: 10.1080/20009666.2018.1454788. eCollection 2018.

Porencephalic cyst: a rare cause of new-onset seizure in an adult

Anam Qureshi  1 , Asad Jehangir  1 , Eugene P York  1
Affiliations

Porencephalic cyst: a rare cause of new-onset seizure in an adult

Anam Qureshi et al. J Community Hosp Intern Med Perspect. .

Abstract

We present a case of a 56-year-old male with a history of perinatal intracerebral hemorrhage who presented to the emergency department after a witnessed new-onset generalized tonic-clonic seizure. Computerized tomography and magnetic resonance imaging of the head revealed a large frontal lobe porencephalic cyst, with encephalomalacia in the right parietal lobe and temporal lobe (the patient did not have any prior cranial imaging). The patient has subsequently remained seizure-free on levetiracetam. Porencephalic cyst is a rare condition of cerebrospinal fluid accumulation in the brain parenchyma that is usually related to perinatal vascular events. These cysts can have a wide array of clinical presentations. This can include partial or generalized seizures, which are usually managed by antiepileptics.

Keywords: Porencephaly; computerized tomography; intracerebral hemorrhage; magnetic resonance imaging; perinatal; seizure.

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Figures

Figure 1.
Figure 1.
Computerized tomography of the head without contrast revealing a large cystic area is seen within the right frontal lobe communicating with the right frontal horn, consistent with a porencephalic cyst. Linear cystic areas are seen within the right parietal lobe possibly representing dilated perivascular spaces.
Figure 2.
Figure 2.
Magnetic resonance imaging of the brain (T1) showing a large porencephalic cyst in the right frontal lobe with additional small areas of encephalomalacia in the right parietal and temporal lobes.
See this image and copyright information in PMC

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