Abstract
Abstract Noninflammatory nodules arising from the injection of biostimulatory fillers persist as an unwanted complication. Pathologically, noninflammatory nodules may arise from superficial injection, accidental boluses, or incorrect concentration of microparticles contained within the filler. This case report introduces a method for reversing calcium hydroxylapatite (CaHA) using focused mechanical vibration. An in situ hyperdilution was created by injecting saline into the nodule core to prepare it for resuspension. Topical microneedling was subsequently applied to generate vibrations, aiming to disperse the accumulated CaHA particles. The outcome demonstrated a significant reduction in the size and visibility of the nodule. This combined saline-microneedling approach offers a potential noninvasive, nonpharmacologic solution for managing superficial CaHA nodules. Level of Evidence: 5
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