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Published on: August 15, 2025
A remnant tooth in an edentulous patient
P Y Marcy1, J Thariat, A Lacout
1Cancer Research Center Antoine-Lacassagne, University Nice Sophia-Antipolis, Department of Radiodiagnostics, 33 avenue Valombrose,06189 Nice cedex 2, France. pierre-yves.marcy@nice.fnclcc.fr
Objectives:
We describe a case of an unusual remnant tooth located in the paranasal sinus in a head and neck cancer patient.
Case Report:
A 72-year patient with a history of T3N2aM0 oropharyngeal cancer treated with chemoradiation came for systematic post-therapeutic multidetector-CT reformation (MDCT) examination. MDCT scan multi planar reformation revealed a well-limited high-density mass in his maxillary sinus, which proved to be a remnant molar tooth. Physical examination and CT imaging were performed at 26 months. Local malignancy, fungal ball and persistent oroantral fistula were ruled out.
Conclusion:
The physio-pathogenesis of oroantral fistula (OAF) and causes of intra sinusal tooth as well as therapy are discussed in this article.
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