AI Article Synopsis
- Subdural contrast effusion can occur after endovascular treatments and may resemble a subdural hematoma on CT scans due to similar imaging characteristics.
- A case study of a 13-month-old girl highlighted the presence of a pial arteriovenous fistula requiring multiple staged endovascular treatments.
- Follow-up CT scans revealed high-density subdural effusions that resolved spontaneously within 32 and 29 hours post-treatment, without causing any complications.
Article Abstract
Subdural contrast effusion secondary to endovascular treatment is exceptionally rare and might be mistaken as subdural hematoma because of similar hyperattenuation on computer tomography. The authors present the case of a 13-month-old girl with a history of increased head circumference and developmental retardation. Cerebral digital subtraction angiography showed a high-flow pial arteriovenous fistula fed by multiple arteries on the right cerebellar surface, with occlusion of the right sigmoid sinus and severe stenosis of the left sigmoid sinus. Staged endovascular treatments were performed to eliminate the fistula. Follow-up head computer tomography scans performed 3 h after both procedures demonstrated typical high-density subdural effusion with computer tomography attenuation value similar to hemorrhage. These effusions did not aggravate the condition and disappeared spontaneously 32 h after the first treatment and 29 h after the second, respectively.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7903540 | PMC |
| http://dx.doi.org/10.1177/1591019920938965 | DOI Listing |
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