Background: The aim of this study was to describe the potential advantages of the transoral 3D 4K exoscope-assisted removal of calculus of the Wharton's duct.
Methods: A 24-year-old female with swelling in the left oral pelvis was diagnosed of sialolithiasis of distal Wharton's duct. A CT scan confirmed the lithiasic formation and a transoral removal in local anesthesia was planned through the 3D 4K exoscope (VITOM 3D, Karl Storz).
Results: A high-quality magnification of the oral pelvis was obtained, with an easy identification of the entrance of the left submandibular gland's duct and the calculus. After blunt dissection the Wharton's duct was incised and the calculus removed. An angiocatheter (20G) was carefully inserted in the duct and removed after 3 days. No postoperative complications occurred. At 7 days post-operative follow-up the patient had developed a neo-ostium 5 mm from the papilla. The exoscope provided a better involvement in the surgery and more interactions of all operating room personnel, residents and students, that had access to the same field of view of the first surgeon with the perception of the depth of the surgical field with 3D technology.
Conclusions: The exoscope could represent a valid option for transoral removal of calculi, allowing for precise surgical dissection of the oral floor, thus reducing the risks for iatrogenic lesion of the lingual nerve. It showed also a high potential for training and educational purposes.
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