Case Scenario

Patient Background: A woman in her 40s who had received over 10 facial filler injection sessions across multiple clinics over 5 years, including hyaluronic acid, Ellansé, and Sculptra. Initial treatments addressed tear troughs and nasolabial folds, then gradually expanded to the apple of the cheeks, chin, temples, and other areas.

Treatment History:

• Over the past year, began feeling that her entire face appeared "puffy" and "unnatural"

• Friends and family started noticing changes in facial appearance

• Felt increasing disconnect between current and former appearance when looking in the mirror

• Another clinic diagnosed the condition as possible "Filler Overfilled Syndrome" (FOS)

• Attempted partial HA dissolution, but overall pillow face appearance showed limited improvement

Presentation at Consultation:

• Classic pillow face characteristics across the entire face: blurred facial contours, proportional distortion

• Palpation revealed multiple areas of filler accumulation

• Some areas had abnormal texture (lumps or foreign body sensation)

• Patient experiencing significant distress about appearance

Deep Analysis

Root Cause Analysis

> Key Insight: Pillow face (FOS) is not caused by a single injection — it results from long-term accumulation. Each individual injection may appear "acceptable," but the cumulative effect of fillers in tissue gradually alters overall facial contours. Simply dissolving HA only addresses part of the problem because non-dissolvable materials remain.

Related reading: FOS Diagnosis and Treatment Gold Standard

Doctor's Perspective

"This represents a classic FOS case. Full-face ultrasound revealed filler residue of different types across multiple zones, some with significant tissue reactions. The challenge lies in: first, identifying which deposits are HA (can attempt dissolution) versus non-dissolvable materials (require physical extraction); second, strategically staging the treatment rather than extracting everything at once — because the swelling and recovery from a single large-scale surgery would be excessive.

Our strategy was to conduct a comprehensive ultrasound assessment first, creating a complete 'filler map,' then address areas in priority order across staged procedures."

Treatment Plan and Process

Overall Strategy

Phase 1 Surgery

Ultrasound mapping: Marking all known filler locations and types

Priority treatment: Addressing areas contributing most to pillow face appearance

Material-specific strategy:

- HA areas: Hyaluronidase treatment first to reduce subsequent extraction scope

- Ellansé/Sculptra areas: Ultrasound-guided micro-extraction

Real-time assessment: Immediate scanning after each area extraction

Safety first: Stop when approaching surgical time or anesthesia limits; defer to next phase

Extraction Results

Phase 1 yielded multiple deposits of different materials, including degraded old HA masses, Ellansé nodules, and Sculptra particles. Some materials showed significant fibrotic tissue reaction.

Key Patient Notes

Special Characteristics of FOS Revision

Recovery Expectations

> Key Insight: FOS revision is a "marathon," not a "sprint." Patients must understand this and maintain realistic expectations for each phase. Impatience may lead to unnecessary risks.

Clinical Takeaways

Prevention over cure for FOS — regularly review cumulative injection volume; avoid overfilling

Full-face ultrasound is foundational for FOS management — a complete filler map is essential

Staged strategy is safe and effective — do not attempt to resolve everything in one session

Mixed materials increase complexity — different strategies needed for different materials

Psychological support is essential — the revision journey is long; patients need thorough communication and support

If you are struggling with pillow face, schedule a consultation for a comprehensive ultrasound assessment.