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Genomic and Transcriptomic Analysis of Ameloblastoma Reveals Distinct Molecularly Aggressive Phenotypes.
Mod Pathol
December 2024
Liverpool Head and Neck Centre, Molecular and Clinical Cancer Medicine, University of Liverpool, UK.
Ameloblastoma (AM) is a benign but locally infiltrative epithelial odontogenic neoplasm of the jawbones that may reach grotesque proportions and be highly recurrent if inadequately removed. The BRAF mutation has been demonstrated as a key molecular event in its development; nevertheless, there are many queries about its etiopathogenesis, which are yet to be answered. In this study, we aimed to integrate the results from whole-exome sequencing (WES) and RNA sequencing in AM samples to identify novel candidate genes that may be relevant to its pathogenesis.
View Article and Find Full Text PDFDesmoplastic Ameloblastoma: A case report of rare pulmonary metastasis.
Heliyon
December 2024
Department of Oral and Maxillofacial Surgery, Showa University School of Dentistry, Tokyo 145-8515, Japan.
Pulmonary metastasis of ameloblastoma is a rare associated with the histopathologically plexiform types of ameloblastoma. In this report, we present an exceptionally rare case of pulmonary metastatic ameloblastoma without local recurrence, emerging 12 years post-initial resection. A female patient, initially diagnosed with mandibular desmoplastic ameloblastoma, revealed masses in both lung fields of the lung on chest radiography, while chest computed tomography revealed more than 10 nodules in both lungs.
View Article and Find Full Text PDFDifference in survival and prognosis between malignant tumors of odontogenic origin.
J Stomatol Oral Maxillofac Surg
November 2024
Sorbonne Université, Paris, France; Department of Maxillo-Facial Surgery, Hôpital Pitié-Salpêtrière, Assistance Publique des Hôpitaux de Paris, Paris, France; Sorbonne université, INSERM UMRS 938, Centre de Recherche de Saint Antoine, Team Cancer Biology and Therapeutics, France.
Introduction: The prognosis of metastatic ameloblastoma (METAM), now defined as a benign tumor, and malignant odontogenic tumors (MOT) is poorly studied in the literature. The aim of this study was to determine the prognosis and factors influencing the survival of these patients.
Material And Methods: Using the SEER database, we retrieved clinical data of patients with malignant tumors of dental origin between 1975 and 2020.
Successful Secondary Reconstruction and Dental Rehabilitation for a Maxillary Bone Defect with Discontinuity after Partial Maxillectomy: A case report.
J Oral Implantol
November 2024
Department of Oral and Maxillofacial Surgery, Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Republic of Korea.
Secondary reconstruction of the maxillary defect with discontinuity after partial maxillectomy is extremely challenging due to extensive, severe adhesions between the maxillary sinus membrane and oral mucosa, resulting in no space for the grafted bone and a lack of soft tissue to cover the graft. This case reports a 23-year-old female patient who underwent secondary reconstruction for a bone defect caused by a partial maxillectomy to remove an ameloblastoma that had invaded the maxillary sinus. We incised the existing soft tissue ridge at the bone defect and extensive adhesions below the maxillary sinus to create space for the grafted bone and to form an adequate buccal flap.
View Article and Find Full Text PDFBone Tumors of the Jaw - the "Blind Spot" for Radiologists Experienced with Tumors? - Part II.
Rofo
November 2024
Department of Oral and Maxillofacial Surgery, University Hospital Augsburg, Augsburg, Germany.
Primary bone tumours of the jaw are rare tumoral entities and do substantially differ from other bone tumours of the human body with respect of their frequently encountered unusual radiological appearances. The reason for that may be confined to the co-existence of two closely neighbored but different anatomical structures (i.e.
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