Soft Tissue Lesions With High Vascular Density on Sonography in Pediatric Patients: Beyond Hemangiomas

Area of Science:

• Pediatric Radiology
• Vascular Lesions
• Diagnostic Imaging

Background:

• Infantile hemangiomas are the most common vascular soft tissue tumors in children.
• Their characteristic clinical evolution can be misleading.
• Sonographic appearance is suggestive but not pathognomonic.

Purpose of the Study:

• To illustrate diverse vascular soft tissue masses that mimic infantile hemangiomas on ultrasound.
• To emphasize the importance of recognizing these mimics to prevent misdiagnosis.
• To present key clinical and sonographic features differentiating these lesions.

Main Methods:

• Pictorial essay format.
• Review of ultrasound images of various vascular soft tissue lesions in pediatric patients.
• Correlation with clinical presentation and follow-up where available.

Main Results:

• Demonstration of sonographic appearances of entities such as hemangioendothelioma, arteriovenous malformations, and other vascular tumors.
• Highlighting specific ultrasound features that differentiate mimics from true infantile hemangiomas.
• Emphasis on the non-specific nature of classic hemangioma ultrasound findings.

Conclusions:

• Accurate diagnosis of infantile hemangiomas requires careful consideration of differential diagnoses.
• Awareness of sonographic mimics is critical for pediatric radiologists.
• Integration of clinical and imaging findings improves diagnostic accuracy for pediatric vascular lesions.