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Updated: Mar 21, 2026

The Application of 1% Methylene Blue Dye As a Single Technique in Breast Cancer Sentinel Node Biopsy
Published on: June 1, 2019
Removal of Mini-Sling Anchor With Magnetic Resonance Imaging-Guided Site Marking With Methylene Blue
Sabrina Shih1, Kate Maturen1, Ashley Skeith1
1University of Michigan Medical School, Ann Arbor, Michigan; Department of Radiology, Department of Obstetrics and Gynecology, and Department of Radiology, University of Michigan, Ann Arbor, Michigan.
Background:
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.
Case:
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.
Conclusion:
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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Magnetic Resonance Imaging
Imaging Studies I: CT and MRI
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...

