Pinna, Nicola; Piccoli, Francesca; Pileggi, Marco; Cianfoni, Alessandro (2023). The 'corkscrew' sign: an indirect MRI hint for intracranial venous hypertension. BMJ case reports, 16(12) BMJ Publishing Group 10.1136/bcr-2023-258685
Full text not available from this repository.Dural arteriovenous fistulas (DAVFs) are intracranial vascular abnormalities in which one or more meningeal arteries shunt into a venous structure, either a cortical vein or a venous sinus, causing cerebral venous hypertension and risk of haemorrhage. Imaging diagnosis and characterisation are of paramount importance to grade the haemorrhagic risk and direct management. Non-invasive vascular neuroimaging might pose a diagnostic suspicion, but invasive catheter digital subtraction angiography (DSA) is usually required. We present the case of a patient with an atypical acute cerebral haemorrhage in which admission imaging with CT angiography (CTA) and MR angiography (MRA) was unremarkable, while advanced morphological MR with susceptibility-weighted imaging (SWI) revealed specific findings suggesting unilateral chronic venous hypertension. Successively, DSA detected a small DAVF that was treated with endovascular embolization. This case report raises awareness on subtle but important conventional imaging findings that suggest the presence of an AV shunt, to avoid misdiagnosis and delayed treatment.
Item Type: |
Journal Article (Further Contribution) |
|---|---|
Division/Institute: |
04 Faculty of Medicine > Department of Radiology, Neuroradiology and Nuclear Medicine (DRNN) > Institute of Diagnostic and Interventional Neuroradiology |
UniBE Contributor: |
Cianfoni, Alessandro |
Subjects: |
600 Technology > 610 Medicine & health |
ISSN: |
1757-790X |
Publisher: |
BMJ Publishing Group |
Language: |
English |
Submitter: |
Pubmed Import |
Date Deposited: |
03 Jan 2024 16:00 |
Last Modified: |
03 Jan 2024 16:00 |
Publisher DOI: |
10.1136/bcr-2023-258685 |
PubMed ID: |
38160032 |
Uncontrolled Keywords: |
Interventional radiology Neuroimaging Neurological injury Stroke |
URI: |
https://boris.unibe.ch/id/eprint/191074 |
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