Mapping Filler Nodules: Ultrasound Characteristics and Clinical Patterns in Dermal Filler Complications

Area of Science:

• Dermatology
• Medical Imaging
• Aesthetic Medicine

Background:

• Dermal filler use has increased, leading to more complications like nodules.
• Diagnosing and treating these nodules can be challenging.
• Ultrasound's role in evaluating different filler nodules is not well understood.

Purpose of the Study:

• To investigate the clinical features of dermal filler nodules.
• To characterize ultrasound findings associated with different types of filler nodules.

Main Methods:

• A retrospective cohort study of 62 patients with filler nodules was conducted.
• Data included patient demographics, filler type, clinical history, and cultures.
• Nodules were assessed using ultrasound, analyzing echogenicity, borders, and internal structure.

Main Results:

• Hyaluronic acid nodules showed "jelly" to "stormcloud" patterns.
• Poly-d,l-lactic acid nodules appeared as "snow globe" formations.
• Polycaprolactone nodules presented varied patterns, and silicone showed a "snowstorm" echotexture.

Conclusions:

• Ultrasound imaging demonstrates specific patterns for different dermal filler nodules.
• These distinct ultrasound characteristics can improve diagnostic accuracy.
• This supports the development of safer, individualized treatment strategies for filler complications.