Background
Most studies on focusing on the prevalence of vascular anomalies are either aimed
to determine the individual occurrence of a specific type among known bearers of abnormalities
or propose an estimation of prevalence for the general population by extrapolating
from the paediatric population. In this scenario, we intended to assess the profile
of vascular anomalies in a group of patients subjected to imaging studies, throughout
a long period of time, to evaluate the frequency of abnormal findings in a consecutive,
nonselected population.
Methods
This is a retrospective review of 996,569 computed tomography and magnetic resonance
studies between 2009 and 2019. Findings were grouped as vascular tumours (hemangiomas;
vascular tumours), cavernomas, and vascular malformations. Positive findings were
evaluated with regard to patients’ demographic characteristics and anatomic distribution
and the subset of vascular malformations was also evaluated with regard to size, classification
in accordance to flow pattern, and Hamburg Classification.
Results
Eighteen thousand four hundred thirty positive examinations were evaluated (mean age,
55.82 ± 15.43 years; 8,188 men). Vascular anomalies were present in 18.49 per 1,000
examinations (17.41 hemangiomas; 0.69 cavernomas and 0.39 vascular malformations per
1,000 examinations). Hemangiomas and cavernomas were homogeneous in anatomic location
between sexes throughout the age groups. Complex malformations were heterogeneous
in anatomic distribution between the sexes in each age group, with intracranial findings
decreasing for female patients in older groups.
Conclusions
Vascular anomalies were found in 18.49 per 1,000 examinations. Hemangiomas and cavernomas
were homogenously distributed, whereas complex malformations displayed a heterogeneous
anatomic distribution pattern between sexes in each age group.
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Article info
Publication history
Published online: February 16, 2023
Accepted:
January 30,
2023
Received:
January 11,
2023
Publication stage
In Press Journal Pre-ProofFootnotes
Conflict of interest: The authors have no competing interest.
Funding sources: This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sector.
Identification
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© 2023 Elsevier Inc. All rights reserved.
