Symptomatic Expanding Porencephalic Cyst after Evacuation of Intracerebral Hematoma in an Adult: A Case Report
Year: 2025
Type: article
Study design: Case Report
Abstract: Porencephalic cysts are very rare in adults. Herein, we present a case of an 88-year-old man with a symptomatic expanding porencephalic cyst after intracerebral hematoma evacuation. He was admitted because of disturbed consciousness and right hemiparesis. A computed tomography (CT) showed a large subcortical hematoma in the left parietal lobe. Hematoma evacuation was performed, his consciousness level improved but gradually deteriorated. Follow-up CT revealed a new cystic lesion with perifocal edema at the hematoma site, with progressive expansion of the cyst. Cyst drainage and -peritoneal shunt placement were performed on postoperative day 14; consequently, his symptoms improved. Considerably, a porencephalic cyst have developed because the cerebrospinal fluid flowed into the closed hematoma cavity from the ventricle owing to the osmotic pressure difference between the ventricle and the hematoma cavity.
Source: JMA Journal
Author: Yoshiaki Takamura
Institution: Higashi Osaka City General Hospital
Language: English
Subfield: Neurology
Field: Medicine
Domain: Health Sciences
Open Access status: diamond
OpenAlex ID: W4409125202