MRI evaluation of soft tissue vascular malformations

Area of Science:

• Radiology
• Medical Imaging
• Vascular Anomalies

Background:

• Soft tissue vascular malformations are frequently misdiagnosed.
• Vascular anomalies are categorized as tumors or malformations.
• Malformations are classified as low-flow (venous, lymphatic) or high-flow (arteriovenous malformations, arteriovenous fistula).

Purpose of the Study:

• To assess Magnetic Resonance Imaging (MRI) characteristics of soft tissue vascular malformations.
• To classify these lesions based on their flow patterns using MRI.

Main Methods:

• A study included 52 patients with soft tissue vascular malformations over 3 years.
• All patients underwent clinical examination and dynamic post-contrast MRI.
• Doppler ultrasound was used as an adjunctive diagnostic tool.

Main Results:

• The study comprised 31 females and 21 males, aged 9–34 years.
• Common findings included 33 venous, 11 lymphatic, and 8 veno-lymphatic malformations; no high-flow malformations were observed.
• Lesions predominantly affected the head, neck, and extremities. Fat-saturated T2WI, STIR, and 3D dynamic post-contrast MRI sequences proved most valuable.

Conclusions:

• Magnetic Resonance Imaging (MRI) is the preferred method for evaluating soft tissue vascular malformations.
• MRI accurately determines lesion extent and flow characteristics (low vs. high).
• This imaging modality significantly aids in treatment planning for vascular malformations.