Cavernous angiomas mimicking thromboised aneurysms
https://doi.org/10.56618/2071-2693_2025_17_3_140
EDN: ASLZVR
Abstract
INTRODUCTION. Cavernous angiomas are a common cerebrovascular pathology, the second most common after cerebral aneurysms. They are often asymptomatic and manifest with a convulsive syndrome or hemorrhage, which can be external focal and intracapsular. In the acute period of external focal hemorrhage, the cavernoma is often not visible according to MSCT and MRI data until the hematoma is lysed.
AIM. The aim of the work is to determine the differential criteria of cavernous angiomas with thrombosed aneurysms based on clinical cases.
CLINICAL CASES. In case of intracapsular hemorrhage, the cavernoma loses its typical structure and also causes difficulties in neuroimaging diagnostics. Particular difficulties arise in case of intracapsular ruptures of cavernomas at the base of the brain, near the arteries of the Willis circle, when they can easily be confused with completely thrombosed aneurysms. The article presents two clinical cases of intracapsular ruptures of cavernous angiomas of the mediobasal parts of the temporal lobe, which were differentiated from completely thrombosed aneurysms. No reliable neuroimaging criteria for distinguishing completely thrombosed aneurysms from cavernous angiomas have been identified. Sometimes these pathologies can only be differentiated intraoperatively.
CONCLUSION. According to observations, it has been found that it is advisable to consider round formations adjacent to the cerebral vessels, not visible on angiography and not accumulating contrast agent, first of all as completely thrombosed aneurysms, until another pathology is proven.
About the Authors
P. G. Shnyakin
Prof. V. F. Voino-Yasenetsky Krasnoyarsk State Medical University;
Regional Clinical Hospital
Russian Federation
Russian Federation
Pavel G. Shnyakin – Dr. of Sci. (Med.), Full Professor, Head at the Department of Traumatology, Orthopedics and Neurosurgery with Postgraduate Education, Prof. V. F. Voino-Yasenetsky Krasnoyarsk State Medical University; Head at the Regional Vascular Center, Regional Clinical Hospital
1 Partizana Zheleznyak street, Krasnoyarsk, 660022;
3 Partizana Zheleznyak street, Krasnoyarsk, 660022;
A. V. Dubovoy
Ilyinskaya Hospital
Russian Federation
Russian Federation
Andrey V. Dubovoy – Leading Neurosurgeon
2 Rublevskoye Predmestye street, bldg. 2, Glukhovo village, Moscow region, 143421
A. O. Gavrilova
Prof. V. F. Voino-Yasenetsky Krasnoyarsk State Medical University
Russian Federation
Russian Federation
Anna O. Gavrilova – Student
1 Partizana Zheleznyak street, Krasnoyarsk, 660022
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Review
For citations:
Shnyakin P.G., Dubovoy A.V., Gavrilova A.O. Cavernous angiomas mimicking thromboised aneurysms. Russian Neurosurgical Journal named after Professor A. L. Polenov. 2025;17(3):140-148. (In Russ.) https://doi.org/10.56618/2071-2693_2025_17_3_140. EDN: ASLZVR
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