• Medicine · Apr 2021

    Case Reports

    Subdural contrast extravasation after percutaneous coronary intervention mimicking acute subdural hematoma: A case report.

    • Jinghua Chen, Ping Xie, Jian Huang, Eryan Sheng, and Kefu Liu.
    • Department of Radiology, Taicang City Hospital of Traditional Chinese Medicine, Taicang.
    • Medicine (Baltimore). 2021 Apr 30; 100 (17): e25583e25583.

    RationaleSubdural contrast extravasation (SCE) is a rare and possible complication following the intravascular injection of a contrast agent. We report a case of interhemispheric SCE detected by computed tomography (CT) after percutaneous coronary intervention.Patient ConcernsA 71-year-old man suddenly lost consciousness and fainted 2 hours prior with a head trauma history. Percutaneous coronary intervention was performed on the second day.DiagnosesHead CT findings showed that the anterior longitudinal fissure of the brain was banded with high density and was uneven in thickness. The edge of the falx side of the brain was straight, smooth, and sharp, and the edge of the brain parenchyma was clear, without obvious edema or a space-occupying effect.InterventionsTicagrelor was given as an antiplatelet therapy; analgesic, antispasmodic symptomatic and supportive treatment was also administered.OutcomesTwo days later, the band-like high density between cerebral hemispheres was completely absorbed, and the patient's condition improved and his headache resolved.LessonsSCE is relatively uncommon during or after the intravascular injection of contrast media. Familiarity with the clinical features and CT findings of SCE may increase clinicians' awareness of this disease, thus avoiding potential misdiagnosis and mistreatment.Copyright © 2021 the Author(s). Published by Wolters Kluwer Health, Inc.

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