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Primary intraosseous malignancies: A 10-year retrospective cohort study.

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OBJECTIVE This study aimed to explore the characteristics and prognoses of primary jaw malignancies and identify valuable prognostic factors. STUDY DESIGN Patients who were primarily diagnosed with jaw malignancies at… Click to show full abstract

OBJECTIVE This study aimed to explore the characteristics and prognoses of primary jaw malignancies and identify valuable prognostic factors. STUDY DESIGN Patients who were primarily diagnosed with jaw malignancies at Beijing Stomatological Hospital between 2006 and 2016 were retrospectively reviewed. RESULTS Eighty patients with malignant jaw tumors were enrolled in the study. Squamous cell carcinoma was the most common type (56.2%). The age range of patients varied from 11 to 92 years old (mean age = 51.5 years), and the male-to-female ratio was 2.1:1. Anatomically, the mandible was involved in 82.5% of cases. The estimated disease-free survival and overall survival (OS) rates were 60.6% and 73.2%, respectively. Cox multivariate analysis showed that a smoking history (hazard ratio = 5.015, 95% confidence interval, 1.900-13.235, P = .001) and advanced age (≥60 years; hazard ratio = 2.464, 95% confidence interval, 0.987-6.155, P = .046) were independent prognostic factors for poor OS. CONCLUSION Primary jaw malignancies were more prevalent in the mandible and among males and middle-aged patients. Radical resection of the primary surgery was the basis of a good prognosis, and the choice of postoperative adjuvant therapy may not ultimately affect OS. Patients with a history of smoking and advanced age were at high risk for poor prognosis.

Keywords: malignancies year; intraosseous malignancies; jaw malignancies; study; age; primary intraosseous

Journal Title: Oral surgery, oral medicine, oral pathology and oral radiology
Year Published: 2021

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