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Fenestrated sagittal sinus mimicking posterior cerebral infarction
Clinical Nuclear Medicine
|November 1, 1978
Summary
A rare sagittal sinus anomaly, not posterior cerebral artery infarction, caused neurological symptoms in two patients. This highlights the importance of advanced imaging to avoid misdiagnosis of posterior circulation disease.
Area of Science:
- Neurology
- Radiology
- Vascular Imaging
Background:
- Focal neurological deficits and brain imaging abnormalities can mimic posterior cerebral artery (PCA) infarction.
- Accurate diagnosis is crucial for appropriate patient management and treatment.
Observation:
- Two patients presented with neurological deficits and focal brain lesions suggestive of PCA infarction.
- Initial static imaging and clinical presentation led to a suspected diagnosis of PCA occlusive disease.
Findings:
- Posterior circulation flow studies revealed a fenestrated anomaly of the sagittal sinus as the cause of the observed abnormalities.
- This finding contrasted with the initial suspicion of posterior cerebral artery infarction.
Implications:
- Sagittal sinus anomalies can present as stroke mimics, underscoring the need for comprehensive vascular assessment.
- Advanced imaging techniques are essential to differentiate rare venous anomalies from common arterial occlusive events, preventing misdiagnosis and inappropriate treatment of posterior circulation pathology.