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Updated: Jul 7, 2026

A Patient-Derived Xenograft Model for Venous Malformation
Published on: June 15, 2020
Congenital vascular malformations: general diagnostic principles
1Department of Surgery, Georgetown University, Washington, DC, USA. bblee38@comcast.net
Insights
Venous malformations (VMs) are common congenital vascular malformations. Accurate diagnosis requires comprehensive work-up to identify VMs and rule out other vascular anomalies for effective treatment planning.
Area of Science:
- Vascular Surgery
- Pediatric Surgery
- Radiology
Background:
- Venous malformation (VM) is the most common congenital vascular malformation (CVM).
- VMs often present as solitary lesions but can also be mixed with other CVMs, such as lymphatic malformations and arteriovenous malformations (AVMs).
- Distinguishing VMs from infantile hemangiomas is crucial for appropriate management.
Purpose of the Study:
- To outline the diagnostic work-up for venous malformations.
- To emphasize the importance of characterizing VMs (extratruncular vs. truncular) and identifying coexisting CVMs.
- To guide the selection of appropriate diagnostic modalities based on clinical needs.
Main Methods:
- Non-invasive and minimally invasive imaging studies are recommended for initial VM diagnosis.
- Invasive studies like venography and arteriography are reserved for complex cases and therapeutic planning.
- Comprehensive assessment includes evaluating lesion extent, severity, embryologic origin, hemodynamic characteristics, and secondary effects.
Main Results:
- Non-invasive studies can safely diagnose VMs and differentiate them from infantile hemangiomas.
- Invasive studies are essential for diagnosing aggressive CVMs like AVMs and for pre-therapeutic planning.
- A thorough work-up ensures complete characterization of the VM and associated anomalies.
Conclusions:
- A systematic diagnostic approach is vital for managing venous malformations effectively.
- Accurate diagnosis and characterization of VMs and coexisting CVMs guide treatment strategies.
- Integrating imaging findings with clinical assessment ensures optimal patient care for congenital vascular malformations.
Abstract:
Venous malformation (VM) is the most common congenital vascular malformation (CVM), which usually presents as a single lesion in the majority of cases. It also presents as a mixed lesion combined with other CVMs (e.g. lymphatic malformation and arteriovenous malformation [AVM]). Therefore, the diagnosis of VM should include an appropriate work-up, to not only confirm and characterize the VM as either extratruncular or truncular but also to diagnose or exclude the presence of other CVMs. The diagnosis of VM can be made safely using non-invasive to minimally invasive studies, which can also distinguish VM from infantile haemangioma. Invasive studies, such as venography and arteriography, are generally reserved for therapeutic planning and diagnosis of more virulent CVMs (e.g. AVM). The work-up of VM should include a complete assessment of the extent and severity of the primary VM lesion. In addition, its embryologic origin, as well as its haemodynamic characteristics and secondary effects should also be determined.
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