Porencephaly is a very unique rare neurological disease identified by the presence of single or multiple cerebrospinal fluid (CSF) cyst inside the brain matter. This is an intra-cranial cyst that rarely occurs in adults. The diagnosis depends on a well-defined CSF fluid space-occupying lesion (SOL) that communicates with the ventricles on a CT scan or MRI of the brain. Cerebral damage during labor or as unknown trauma during infancy can present with porencephaly much later in life. This might

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... the aftermath of trauma, ischemic, infection or bleeding in the postnatal life. These cysts may be mild enough to show any symptoms or severe enough to cause mental and physical disability. Here we present a case of a 76-year-old female attended in the emergency department with loss of strength in her right arm, four days ago. Porencephaly in adult is a rare neurological disease case. In this case, porencephaly caused by stroke ischemic 4 years ago due to anterior carotid artery embolism.