Imaging Science in Dentistry

Korean Academy of Oral and Maxillofacial Radiology (대한영상치의학회)
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Appearance of nasopalatine duct cysts on dental magnetic resonance imaging using a mandibular coil: Two case reports with a literature review

  • Adib Al-Haj Husain (Clinic of Cranio-Maxillofacial and Oral Surgery, Center of Dental Medicine, University of Zurich) ;
  • Daphne Schonegg (Department of Cranio-Maxillo-Facial and Oral Surgery, University Hospital of Zurich, University of Zurich) ;
  • Silvio Valdec (Clinic of Cranio-Maxillofacial and Oral Surgery, Center of Dental Medicine, University of Zurich) ;
  • Bernd Stadlinger (Clinic of Cranio-Maxillofacial and Oral Surgery, Center of Dental Medicine, University of Zurich) ;
  • Marco Piccirelli (Department of Neuroradiology, Clinical Neuroscience Center, University Hospital of Zurich, University of Zurich) ;
  • Sebastian Winklhofer (Department of Neuroradiology, Clinical Neuroscience Center, University Hospital of Zurich, University of Zurich)
  • Received : 2022.12.10
  • Accepted : 2023.02.22
  • Published : 2023.06.30
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Abstract

Nasopalatine duct cysts (NPDCs), the most common non-odontogenic cysts of maxilla, are often incidental findings on diagnostic imaging. When symptomatic, they usually present as a painless swelling with possible fistula. Conventional radiography shows a round-to-ovoid or heart-shaped radiolucency between the roots of central maxillary incisors. While the radiographic features of NPDCs in X-ray-based modalities have been well described, their magnetic resonance imaging (MRI) features have rarely been reported. Developments in dental MRI in recent years and the introduction of various dental MRI protocols now allow a wide range of applications in dental medicine. MRI is becoming an important tool for the detection and diagnosis of incidental or non-incidental dentomaxillofacial cysts. This report presented and discussed the characteristics of 2 NPDC cases visualized on MRI using both conventional and newly implemented specific dental MRI protocols with a novel 15-channel mandibular coil, demonstrating the use of these protocols for radiation-free maxillofacial diagnoses.

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References

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