Open AccessA Case of Odontogenic Myxoma of the Mandible with Expansion to the Alveolar Crest – Comparison of Imaging Findings and Pathological Findings: A Case Report
Author(s) -
Shigetoshi Yoshida,
Yohei Takeshita,
Toshiyuki Kawazu,
Tatsushi Matsumura,
Junichi Asaumi,
Hitoshi Nagatsuka,
Yoshinobu Yanagi
Publication year - 2022
Publication title -
the open dentistry journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.428
H-Index - 25
ISSN - 1874-2106
DOI - 10.2174/18742106-v16-2202140
Subject(s) - odontogenic myxoma , medicine , myxoma , mandible (arthropod mouthpart) , pathological , pathology , magnetic resonance imaging , dental alveolus , odontogenic tumor , radiology , dentistry , odontogenic , biology , botany , genus
Background: An odontogenic myxoma is an intraosseous tumor characterized by stellate and spindle-shaped cells embedded in an abundant myxoid or mucoid extracellular matrix. We herein describe an odontogenic myxoma that expanded not only to the bone marrow but also to the outside of the alveolar bone. Diagnosis of an odontogenic myxoma in a tooth-deficient region by imaging findings alone was difficult because the positional relationship between the tumor and the tooth is unknown. Furthermore, some of these odontogenic myxomas reportedly show rapid growth. Case Report: Here, we present the case of a patient, a 44-year-old man, who had a hard, bone-like swelling on his right mandible molar region and mild paresthesia on his right cheek. An odontogenic myxoma and ameloblastoma were suspected based on the imaging findings; however, pathological examination of the biopsy led to a diagnosis of odontogenic myxoma. Right segmental mandibulectomy was performed, and there was no recurrence observed after surgery. Conclusion: To improve the accuracy of imaging diagnosis, it is important to compare the imaging findings with the pathological findings of the surgical specimen. This comparison in the present case revealed differences in the magnetic resonance imaging signal intensity in regions with different types of cell components.