Peer-reviewed veterinary case report
MRI-guided dye helps remove painful mini-sling anchor in surgery
By Shih S et al.·2026·University of Michigan Medical School, United States·View original on Europe PMC →
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Original publication title: Removal of Mini-Sling Anchor With Magnetic Resonance Imaging-Guided Site Marking With Methylene Blue.
Plain-English summary
In this case, a patient had ongoing pelvic pain after a previous surgery to remove a mesh used for treating urinary incontinence. The doctors used a special imaging technique to find a small anchor that was left behind and marked it with a blue dye to help guide the surgery for its removal. This method made it easier for the surgeons to locate the anchor during the operation. The use of dye proved to be very helpful in ensuring the anchor was successfully removed.
Abstract
<h4>Background</h4>Single-incision midurethral slings are an alternative to standard midurethral slings for the treatment of stress urinary incontinence. Single-incision midurethral slings use less mesh, relying on soft tissue anchors for mesh stabilization, but can be associated with chronic pain.<h4>Case</h4>We describe the novel use of magnetic resonance imaging to localize and stain a retained radiolucent single-incision midurethral sling anchor with methylene blue dye. This assisted the transvaginal dissection for removal of the stained anchor for a patient with persistent chronic pelvic pain after a prior mesh removal.<h4>Conclusion</h4>Marking the target anchor with dye provided crucial intraoperative guidance for the surgical dissection. This technique can be a valuable tool for localizing surgical targets that are radiolucent.
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Search related cases →Original publication on Europe PMC: https://europepmc.org/article/MED/41859506