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  • Title: Can four-dimensional computed tomography support diagnosis and treatment planning?: a case report before and after coronoidectomy.
    Author: Huang W, Akashi M, Nishio T, Negi N, Kimoto A, Hasegawa T.
    Journal: Oral Maxillofac Surg; 2020 Dec; 24(4):515-520. PubMed ID: 32621034.
    Abstract:
    INTRODUCTION: Elongated mandibular coronoid process is a rare condition defined as enlargement of the coronoid process. The only useful way to treat the mouth-opening limitation is resection of the elongated coronoid process. Four-dimensional CT (4DCT; three spatial dimensions plus time axis) is a novel imaging technique. Its usefulness of for evaluation of dynamic movements such as joint motion has been reported. Here, we show the potential usefulness of 4DCT evaluation in a patient with elongated mandibular coronoid process. CASE PRESENTATION: A 59-year-old female who suffered from mouth-opening difficulty and pressure during mouth opening was referred to our department. Elongation of the right coronoid process was evident in a panoramic X-ray image. The mandibular movement and temporal muscle motility before and after coronoidectomy in this patient on 4DCT could be evaluated. CONCLUSIONS: 4DCT is useful in the diagnosis and surgical outcome of elongated coronoid process.
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