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Retroductal Nanoparticle Injection to the Murine Submandibular Gland
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Submandibular Gland Transfer: A Potential Imaging Pitfall.

X Wu1, S S Yom2,3, P K Ha3

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Summary
This summary is machine-generated.

Submandibular gland transfer surgery for head and neck cancer patients creates asymmetric imaging appearances. Understanding these postsurgical changes is crucial for accurate radiologic interpretation and avoiding misdiagnosis.

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Area of Science:

  • Radiology
  • Oncology
  • Surgical Oncology

Background:

  • Submandibular gland transfer surgery is utilized to shield glands during head and neck cancer radiation therapy, preventing xerostomia.
  • This surgical technique results in characteristic asymmetric changes in the submandibular and submental spaces postoperatively.

Purpose of the Study:

  • To characterize the morphologic and enhancement features of transferred submandibular glands on imaging.
  • To identify potential interpretation pitfalls in the postoperative assessment of these transferred glands.

Main Methods:

  • Retrospective review of patients with head and neck cancer who underwent submandibular gland transfer.
  • Analysis of CT and MR imaging to evaluate gland morphology, enhancement patterns, and interpretive accuracy.

Main Results:

  • Transferred submandibular glands were significantly lengthened and displaced anteriorly/inferiorly compared to contralateral glands.
  • Enhancement patterns varied based on timing relative to surgery and radiation therapy.
  • Surgical transfer was noted in reports for 7/11 patients, with interpretation errors in 2/11.

Conclusions:

  • Submandibular gland transfer alters the normal symmetric appearance of the neck spaces, with glands becoming lengthened and anteriorly/inferiorly displaced.
  • Variable enhancement characteristics are observed in the transferred glands.
  • Familiarity with these postsurgical imaging findings is essential for accurate interpretation.