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Updated: Jul 14, 2026

Biological Compatibility Profile on Biomaterials for Bone Regeneration
Published on: November 16, 2018
[Cutaneous adverse reaction to Bio-Alcamid implant]
E Gómez-de la Fuente1, J G Alvarez-Fernández, F Pinedo
1Unidades de Dermatología, Fundación Hospital Alcorcón, Madrid, España. egomezf@fhalcorcon.es
Bio-Alcamid, a non-absorbable filler, can cause delayed inflammatory reactions and infections, such as Streptococcus viridans, years after cosmetic procedures. Early recognition and management of these adverse effects are crucial for patient safety.
Area of Science:
- Dermatology
- Plastic Surgery
- Biomaterials Science
Background:
- Bio-Alcamid, a poly-alkyl-imide based non-absorbable gel filler, has been used for cosmetic defect correction.
- While generally considered safe, potential adverse reactions to permanent fillers require ongoing investigation.
Observation:
- A 34-year-old woman developed nodular lesions and a painful inflammatory nodule months after Bio-Alcamid implantation for acne scars.
- Purulent material from the nodule culture identified Streptococcus viridans.
- Cytology revealed a granulomatous inflammatory reaction and foreign body presence.
Findings:
- The case highlights a delayed inflammatory and infectious complication associated with Bio-Alcamid implants.
- Streptococcus viridans infection in conjunction with a foreign body reaction indicates a complex response to the filler material.
Implications:
- Understanding the diverse reactions to permanent fillers like Bio-Alcamid is essential due to their increasing use.
- Awareness of potential complications, including infection and inflammation, is critical for clinicians to manage patients effectively.
- Potential medico-legal implications necessitate thorough patient counseling and monitoring following cosmetic filler procedures.
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