Delayed-onset nodules after filler — how are you working them up (inflammatory vs not)?
A patient came back weeks later with a lump. I want a clear, staged approach for delayed-onset nodules so I don't over- or under-react.
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First split them into non-inflammatory vs inflammatory — they're managed differently. NON-inflammatory (spongy/firm lump, NO redness/pain/heat): often misplacement, migration or unmassaged product. 1. Firm massage 5–10 minutes; advise the patient to massage for ~2 weeks. 2. If it can be felt but not seen, watch-and-wait is reasonable. 3. If it persists, consider hyaluronidase per ACE guidance. INFLAMMATORY (pain, tenderness, redness): think low-grade infection/biofilm/immune-inflammatory. 1. First line often a macrolide or tetracycline — e.g. clarithromycin 500 mg BD, or doxycycline 100 mg BD — for ~2 weeks, then review. 2. Partial-but-incomplete improvement → continue ~4 more weeks and review; no improvement → consider dual antibiotic therapy. 3. Consider hyaluronidase if no significant improvement after ~4 weeks and it followed HA filler. Huge caveat: only prescribe within your competence, check current antimicrobial guidance and interactions/contraindications, and follow the current ACE complication guidance — these regimens are a teaching framework, not a substitute for clinical judgement.
From the prescribing side — if you're not comfortable prescribing/managing the antibiotic side, involve a prescriber early and don't delay. And always exclude an evolving infection or vascular cause before settling on 'just a nodule'.
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